Hold'em table

67o is a marginal but playable button hand in 3-handed play, and opening to 2.5bb applies pressure while leveraging position. Folding would be too tight given the button and no rake.

A7o plays poorly out of position against a button raise with the big blind still to act, so folding is the standard play.

A8 offsuit is strong enough to defend the big blind against a button raise, and calling keeps the pot manageable out of position.

On this paired board, checking keeps the pot manageable with ace-high and a backdoor nut-flush draw while leaving room to respond to the button's bet.

I have bottom pair on a paired board with a weak kicker; checking to control the pot and see a free turn card.

Ace-high has some showdown value, but betting this paired board is unlikely to make many better hands fold. I’ll check and reassess on the river.

I have two pair (kings and sixes) on a board where both opponents checked; betting extracts value from worse pairs and draws, while I can fold to a raise.

Ace-high can beat unpaired hands that bet after the flop checks through. The call price is reasonable, and I can reassess on the river.

Ace-high has little showdown value, but the Ah blocks the nut flush. A pot-sized river bluff can pressure one-pair hands after the flush completes.

The river bet on a paired, flushing board is consistent with trips or a made flush, and my two pair (kings and sixes) only beats bluffs. With few natural bluffs available, folding is the disciplined choice.

J4o is too weak to open from the button even in a 3-handed game.

J4 offsuit is weak, but completing for 50 chips is reasonable heads-up against the big blind. I’ll avoid building a larger pot out of position.

With 8-2 offsuit in the big blind and no call required, checking is best. Raising a completed small blind with this weak hand would only build a pot out of position with poor equity.

Bottom pair has some showdown value, but it is too weak to build a pot out of position. Checking keeps the opponent's weaker hands in.

With 8-high and minimal equity, checking behind in position keeps the pot small and lets us take a free turn; a bluff is not warranted against a limped small blind on this board.

Two pair is strong against a big blind who checked the flop. A 150-chip bet gets value from weaker pairs and draws while charging them to continue.

I have 8-high with no pair or meaningful draw and face a 150 bet, so folding is the highest-EV play.

On the button with two players left, 8-6 offsuit is a marginal but playable open. A small raise gives me a chance to win the blinds while retaining position if called.

9-5 offsuit is too weak to defend out of position against a button raise, so folding preserves chips.

J5o is too weak to defend out of position against a button open.

KQs is a strong suited broadway hand on the button in a 3-handed game. Raising applies pressure, builds the pot, and can take initiative preflop.

K2o is far too weak to defend out of position against a 3bb button open.

Q5 offsuit plays poorly out of position against a 3x button raise, and its equity is difficult to realize.

Pocket threes is an easy opening hand on the button in 3-handed play. Standard open raise to 2.5bb.

T6 offsuit is too weak to defend from the small blind against a button raise, especially with the big blind still to act.

QTs has enough equity against a button open and I'm getting over 2.5:1 to call, so I'll defend the big blind and see a flop.

Top pair with a decent kicker on a draw-heavy flop; betting for value and protection against flush draws and overcards.

I hold a low underpair on a board with two overcards and flush draws, facing a leading bet from the big blind. Folding is standard here with very little equity.

42 offsuit is too weak to open from the button at this stack depth.

3c7s is a weak offsuit hand out of position against the big blind, so folding avoids further losses with a marginal call.