Hold'em table

Calling 100 to see a flop with suited Q8 on the button is reasonable; I want to keep the pot manageable and play postflop rather than 3-bet light here.

Getting 5:1 with K8o in a 3-handed pot, completing the small blind is cheap and keeps the pot small with a marginal hand out of position.

With J7o and no extra cost to see the flop, checking is the best way to realize equity without bloating the pot out of position.

I have an open-ended straight draw and a king overcard, so a semi-bluff bet can fold better hands or build a pot with good equity.

I have an open-ended straight draw on a connected board, so calling the continuation bet is profitable. I'll keep the pot small and see if I can complete the straight on later streets.

I have an 8 for the nut straight (8-high) on a connected board. Betting for value and to charge flush draws.

I have an open-ended straight draw with 8d Qd on a 7-6-5-4 board, giving me 8 outs to the nuts. Calling 600 into a 1300 pot is reasonable to see the river without overcommitting.

The board is a completed straight (4-5-6-7 with a 5 kicker) and I hold Qd8d with no made hand or flush draw, so I have essentially no equity. Checking is the correct play to avoid putting more chips into a pot I am unlikely to win.

Q9o is a playable button hand in 3-handed; raising to 250 applies pressure, can take the blinds, and builds initiative.

KTo is strong enough to continue against a button open, and calling keeps the pot manageable while out of position postflop.

5h3s is a weak hand that doesn't play well postflop, and calling 150 into a 250 raise is a bad price. Folding preserves my stack for better spots.

I have only K-high with no real draw on a paired board, so checking keeps the pot small and lets me see the turn cheaply.

The opponent checked a paired flop, and my Q-high has some equity with overcards and a gutshot. A half-pot continuation bet can take the pot down or set up a favorable turn.

J2 offsuit is a weak hand with poor equity, and calling 100 chips is not profitable. Folding costs nothing and avoids playing a dominated hand out of position.

4s 6d is a weak hand and I'm out of position in the small blind; folding avoids losing more chips with almost no equity.

I have 6h7d, a weak hand with no immediate equity. Facing a 100 chip big blind and a 50 chip small blind raise, folding minimizes losses with a hand that is unlikely to improve enough to justify calling or raising.

JTo is strong enough to raise in a blind-vs-blind spot, applying pressure and taking initiative with position on later streets.

64 offsuit is too weak to continue against a raise, even with decent pot odds, and I would be out of position postflop. Folding preserves my stack for better spots.

5s3d is too weak to continue from the button against a full big blind, and calling or raising would risk chips with poor equity.

Pocket sixes are strong heads-up, so I'll raise to put pressure on the big blind and take initiative preflop.

I have King-high with a backdoor flush draw, which is marginal but playable. Calling keeps me in the hand without overcommitting with a weak holding against a raise.

I have top pair on a dry board and the opponent checked, so I'll take the free card to control the pot and avoid scaring them off.

The board is paired with an Ace and King, and my Kd gives me top pair with a weak kicker. Checking keeps the pot small and avoids building a big bluff catcher against a likely strong hand.

My pocket sixes are weak on this paired ace-king board, so I prefer to keep the pot small and check rather than value-own myself against a better hand.

Board is paired with a 7, and my Kd is likely second pair at best; checking keeps the pot small and avoids bluffing into a possible 7 or overpair.

I have 5s Js, a weak offsuit hand. The small blind posted 50 and the big blind 100, and I'm facing a 50 call. With no information on the other player's range and a mediocre hand, folding is the safest play to preserve my stack.