Hold'em table

Eight-seven offsuit on the button is a marginal hand, and calling 100 to see a cheap flop is reasonable in a three-handed game. Raising is also defensible, but calling keeps the risk low.

Kd6s is too weak offsuit to complete out of position even with good direct pot odds.

J4 offsuit is too weak to raise against a button limp, and checking is free as the big blind.

Jack-high with no pair or draw on a paired queen flop has little value, so I check rather than bluff into the limper.

Holding 8d7c on a Q-Q-3 board, I have nothing but a weak backdoor; with seat_3 checking, checking to see the turn for free is the best option.

Jack-high with no pair or draw on a paired board has little value, and the pot is small, so checking is better than bluffing.

I have 8-7 high with no pair on a Q-Q-3-6 board, so I can't profitably bet for value. Checking keeps the pot small and sees a free river card.

I have queens and jacks on a paired board and the opponent has checked it down. A river bet is unlikely to be called by worse, so I take the free showdown.

I have no pair and no straight draw completed on this river, and checking is free with no bet to call. Checking keeps the pot small and avoids investing more chips with a missed hand.

On the button in 3-handed play, J6s is a standard open to apply pressure and utilize position.

K6 offsuit is too weak to continue out of position against a button open, so folding is the best play.

Ace-eight offsuit is a playable hand getting a good price, and calling the 100-chip raise from the big blind keeps the pot manageable while I see the flop.

I have only ace-high with no pair on a J-T-6 board, and I can check for free as first to act, so checking keeps the pot small and avoids bloating it with a weak hand.

I flopped two pair on a connected board, so I bet for value and protection against straight draws.

I have only Ace-high with no pair and weak draws on a J-T-6 board, so calling 300 into a 750 pot against an aggressive opponent is not profitable enough.

Q9o is playable as a button open in 3-handed; a 2.5bb raise takes the initiative with position rather than flatting or folding.

Seven-two offsuit is the weakest starting hand, and facing a button raise with 200 more to call from the small blind, folding is the disciplined choice.

T3s is too weak to defend out of position against a 2.5bb button open.

K9 offsuit on the button in a 3-handed pot is a reasonable steal candidate, and raising to 250 can win the blinds immediately or take the pot heads-up with position.

75o is too weak to defend from the small blind against a button open.

J9 offsuit is too weak to continue out of position against a button open; folding avoids a dominated, low-equity spot.

Q4o is too weak to open even from the button in a 3-handed game, making fold the standard play.

K3o is too weak and dominated to invest more from the small blind heads-up; the posted blind is not worth chasing.

Nine-five offsuit is too weak to open from the button against two live blinds, so folding preserves the stack.

K3 suited is a playable but marginal hand from the small blind, and calling the 50-chip completion is cheap in a three-handed pot with the big blind still to act.

Checking our option with JTo in position to see a free flop against the small blind's limp.

I hold 3h Kh, a weak pair-less hand with only king-high on a T-K-4 flop; checking is free and keeps the pot small, and it is my only sensible option since there is nothing to call.

I have second pair with a gutshot straight draw in position; checking back controls the pot size and realizes equity safely.

I have a pair of kings with an ace on board, a medium-strength hand that is likely best or close, but checking keeps the pot controlled and avoids bloating it against a possible ace or stronger hand.

I have third pair with a gutshot straight draw; checking behind lets me realize equity and see a free river card.

I hold aces and kings (two pair) on the river. Both opponents have checked twice, so a small value bet should get called by weaker kings or tens.

I hold two pair, Aces and Tens with a King kicker, facing a single big blind bet on the river after checks on previous streets. Getting 3:1 pot odds, calling is clearly profitable against missed floats, lower pairs, or bluffs.