Hold'em table

A6o is comfortably within standard opening range from the button in 3-handed play, so raising to 2.5bb builds the pot with position.

Q3o is too weak to defend out of position against a button raise, and calling 150 more with a dominated hand is not profitable.

9-2 offsuit is too weak to continue out of position against the big blind, even with 3:1 pot odds.

With As7s on the button in a 3-handed game, raising is standard to take initiative and possibly win the blinds, while having position and a decent hand if called.

A8o does not play well out of position against a 3x button open with the big blind still to act, making folding standard.

A4 suited has decent playability and pot odds justify a call against a single raiser.

I only have bottom pair with an ace kicker on a king-high board, so I'll check to control pot size and see what the preflop raiser does.

As the preflop raiser on a K-high flop, a continuation bet can fold out the big blind's weak hands and take down the pot. My ace-high has some backdoor equity if called.

T7o is too weak to open from the button 100bb deep in 3-handed play. Folding is standard.

87o is a weak hand heads-up against the big blind after the button folded; not worth continuing for the extra 50 chips.

4h7c offsuit is a weak hand not worth playing from the button facing a raise; fold and wait for a better spot.

J6o is weak, but after the button folds I am getting 3:1 to complete in the small blind. Calling keeps the pot small and realizes my equity against a random big blind.

A8o has decent showdown value and plays comfortably in position postflop against the small blind's limp. Checking takes the free flop.

I flopped trips with a J kicker and no bet yet; betting for value and to build the pot against the big blind's wide range.

Holding Ace-high in position on a paired, dry board against a blind-versus-blind lead is strong enough to call with good pot odds.

I have three sixes with a J kicker on a board unlikely to have completed a bigger hand; betting for value and to charge draws.

Holding only Ace-high on a paired board facing a second barrel with minimal draw equity, this is a clear fold.

Suited connector 54s on the button offers good implied odds and position; calling 100 to close the action with 3 players is cheap and keeps the pot multiway.

K7o has weak playability out of position multiway despite getting good direct odds to complete the small blind.

I'm BB with weak offsuit cards (2s6h) and only one caller limped; checking is free since there's no bet to call.

No pair or draw with 2-6 offsuit on an Ace-high board; checking to see a free card is best.

With 4c5c on an A-Q-3 flop, I have little equity and no need to bloat the pot; checking behind in position keeps the pot small and lets me see a free turn.

I have no pair and no draw on a board with an ace; checking is free and avoids building a pot I can't profitably bet or call.

I have bottom pair on an ace-high board with no strong draw, and checking back controls the pot while keeping the opponent's range wide for showdown.

I have no pair and no showdown value with 2s6h on this board, so checking is the standard play after a checked-through hand.

I have a marginal pair of fives on a coordinated board, and the big blind has shown no strength by checking every street. Checking controls the pot and avoids getting called or raised by better pairs.