Online Poker Tells: No faces. Tells everywhere.

Live poker has poker faces. Online poker has patterns — bet sizes, timing, chat-box rants, oddly-shaped buy-ins. Ten reliable signals, the reverse-tells that exploit them, and a note-taking system that turns a year of play into a database of leaks.

Each tell, in depth

What it means. What to do about it.

The same ten tells from the cheatsheet — now with the full reasoning. Each card has its reliability score, the read, the exploit, and the situations where the pattern reverses.

No. 01

Instant check

Reliability
Medium-high
Reads as
Weak (usually)

Almost always the pre-action 'Check/Fold' button. Most common from the big blind with a trash hand. Also seen post-flop from multi-tablers who didn't connect and are speed-running their tables.

Use it

Bet out in position after an instant check — they fold most of the time. Ragged flops are especially good. As a reverse, use Check (not Check/Fold) with a big hand and let them fall into the same pattern.

When it lies

Tricky regs sometimes use it as a reverse tell — instant-checking trip 6s to induce a bet. Rare, but possible.

No. 02

All-in overbet on the river

Reliability
High
Reads as
Monster — almost always

Overbet shoves to a river are rarely bluffs at micro and low stakes. Classic pattern: opponent rivers a full house when a flush completes and shoves, hoping you call thinking it's desperation.

Use it

Don't call without the nuts or near-nuts. At showdown the overbettor wins 80–90% of the time. Use sparingly yourself as a polarized bluff vs. tough opponents.

When it lies

Tough regs will balance this — but you have to actually know they're tough. Default to fold.

No. 03

Min-check-raise

Reliability
High
Reads as
Very strong — rarely a bluff

The minimum check-raise narrows their range to two extremes — almost never the middle. At low stakes it tilts heavily toward strong. They want you to call cheaply and pay off later streets.

Use it

Call wide with medium-strength hands; see the turn. If they check-raise min then check the turn, the bluff frequency goes up — barrel.

When it lies

Some thinking players use it specifically against perceived c-bets. Read the player.

No. 04

Donk bet (leading the flop)

Reliability
Medium
Reads as
Weak — testing the water

Out-of-position lead into the preflop raiser usually means a marginal made hand or a weak draw. Real strength check-raises. Real bluffs check-call and float.

Use it

Raise these. Most fold. Of those that call, you have position and information for the rest of the hand.

When it lies

Observant opponents will turn this against you. Watch for the lead-flop check-raise-turn line.

No. 05

Tilt rant in chat

Reliability
High
Reads as
About to play recklessly

Chat-box anger is the most reliable tell online. They are not in control. They are going to play the next ten hands like the last one owes them money.

Use it

Play your strong hands fast. Don't slowplay against tilt — value-bet huge, they pay. If you delivered the bad beat, even better. They'll target you specifically.

When it lies

Some players fake-tilt to induce action. Less common at low stakes.

No. 06

Posting blinds early (late position)

Reliability
Low
Reads as
Impatient rec player

At low stakes a few extra bucks isn't strong evidence of weakness. Worth noting, not worth pricing decisions on.

Use it

If you can steal their blinds after they post early, do — they look loose to the rest of the table. Don't size up decisions on this alone.

When it lies

Some regs post-early to disguise normal tight play. Don't over-read.

No. 07

Posting blinds early (odd buy-in)

Reliability
High
Reads as
Playing their last money

Buy-in amount with cents = whatever was left in the cashier. Posting blinds out of order on top of that = desperate to play and stack quickly.

Use it

Pressure them in position. They'll play fast trying to double up — let them shove into your value hands.

When it lies

Rare, but the read is genuinely reliable when present.

No. 08

Habitual limp-caller

Reliability
High
Reads as
Passive station

This is the most common bad-player pattern online. They want to see flops cheap, refuse to fold any pair, and only get aggressive when they have it.

Use it

Isolate with larger raises. Value-bet relentlessly. NEVER bluff — they call down with second pair.

When it lies

None really. Just keep value-betting.

No. 09

Long delay → big bet

Reliability
Medium-high
Reads as
Strong (weak means strong)

Break from baseline timing followed by a big bet/raise = almost always real. The performer wants you to think they're agonizing. They aren't — they're stacking.

Use it

Shy away from delayed big bets unless your hand is genuinely strong. Use the same pattern as your own reverse bluff against opponents who know the tell.

When it lies

Multi-tablers are slow by default — calibrate against their baseline, not the clock.

No. 10

Check-raise on the river

Reliability
Very high
Reads as
Near-nuts

Because they have it. Outside of high-stakes tough games, the river check-raise is the strongest signal in online poker. Bluff frequency is near zero.

Use it

Fold unless you can beat trips on a paired board or hold the actual nuts. Hero-calls here are tuition.

When it lies

At nosebleed stakes against known thinking regs, the bluff frequency goes up. Below that — fold.

Use them against the room

The reverse tell.

Once you know what a tell looks like, you can pretend to broadcast it. Four specific reverse-tells that print money against opponents who think they're reading you.

The setup

Limped Ah6h on the button. Flop comes 4h Jh 9h — nut flush.

The play

Don't snap-call the pot bet. Wait three seconds. Look indecisive. Then call.

Why it works Snap-calling reads as strong. Hesitation reads as 'two pair, scared of the flush.' Lets villain barrel turn and river with his K-high flush attempt — and pay off your shove.
The setup

Big blind, holding pocket aces. Flopped a set.

The play

Use Check (not Check/Fold), but click it the instant the flop hits.

Why it works Reads identically to the auto-check/fold pattern. Villain reads weakness, fires a c-bet, and you check-raise. Works once per opponent — but it's a big once.
The setup

Late position vs. a tight UTG raiser. Hand: 7♣6♣.

The play

Min 3-bet preflop. The opponent reads it as Aces or Kings.

Why it works At low stakes, the min 3-bet is read as strong. Against tight UTG raisers, this folds out everything except QQ+/AK — and you've turned a fold-equity bluff into a profitable preflop steal.
The setup

River, missed flush draw, opponent checked to you.

The play

Wait the full clock. Then bet 80% pot.

Why it works Looks like 'I'm trying to value-bet a marginal hand.' Opponent reads value, folds bluff-catchers. Costs more chips when called — use sparingly against players who know the tell.
The compounding edge

Notes turn one session into a database.

Player notes are the single highest-ROI activity in online poker. A year of notes on a busy room turns every familiar name into a strategy. Two rules: keep them short, and never write them in anger.

01

Use shorthand.

Three letters max. Build a personal codex you can read in a glance. Common ones below — borrow what you like, invent what you don't.

02

One sighting = a question mark.

First time you see a pattern, note it with a "?". Drop the question mark on the second confirmation. A single hand doesn't make a pattern.

03

Watch hands you're not in.

The free showdowns are the most valuable — you see how they played a hand AND what they had. Take notes during folds.

04

Never write in anger.

"Donk!" and "Fish hit flush" tell you nothing tomorrow. If you wouldn't pay $20 for the note, don't write it.

The shorthand codex

Eight abbreviations that cover ~80% of useful notes. Copy them, modify them, replace them — the point is consistency, not the specific letters.

DD
Drives draws

Bets out aggressively with flush/straight draws rather than checking.

POW
Pounces on weakness

Bets at every checked-to spot. Punish by check-calling with bluff-catchers.

3BS
3-bets light

Re-raises preflop with hands you wouldn't. Wider 4-bet response from you.

CS
Calling station

Calls down with bottom pair. Value-bet thin, never bluff.

FOR
Fit or fold

C-bets the flop, folds the turn when called. Float wide.

OB
Overbets rivers

Polarized river sizing. Lean toward fold without a strong read.

CR-R
Check-raises rivers

When they do it, they have it. Fold all but the nuts.

SP
Slowplays sets

Sets get checked. Suspect anything that fires after their check on a wet board.

The other side

Don’t be the cheatsheet.

Every tell on this page works in both directions. If you can read them, the regs can read you. Three habits that flatten your own pattern.

01

One clock.

Wait the same beat (~2–3 seconds) before every action — bet, call, fold. Same beat with aces, same beat with seven-deuce. Removes the single biggest online tell from your game.

02

One sizing tree.

Your c-bet should be the same size with a set and with king-high. Your overbet should mean the same thing every time. If sizing varies by hand strength, the regs are already inside your wallet.

03

Stay off the chat.

Nothing good ever came from typing in the chatbox. Bad beat? Click the next table. The only tell more reliable than the river check-raise is a player who reacts to losing.

Rule Auto-action buttons (especially Check/Fold) leak more information than any single timing tell. Use them sparingly. If you must, also use them sometimes with strong hands — keep the pattern noisy.
What to take to the table

If you only remember three things.

01

Sizing > timing.

Bet size is the most reliable online tell. Deviations from a player’s baseline sizing carry more signal than how long they took to click.

02

Take the note.

Three letters next to a screen name today is ten dollars in your stack next month. The ROI on note-taking dwarfs everything except hand selection.

03

Look in the mirror.

Every tell on this page works in both directions. One clock, one sizing tree, no chat. That alone closes the biggest leaks in the average online player’s game.