Hold'em table

Q8o is too weak to open from the button against two live blinds, so folding avoids a dominated spot.

Heads-up pot since button folded; 9h6h suited plays well against a single opponent, so raise to build the pot and take initiative.

7-2 suited is the worst starting hand; facing a 3x raise from the small blind out of position, folding is clearly correct despite decent pot odds.

J6 offsuit is too weak to continue from the button facing a raise-sized call in a 3-handed game; folding preserves chips for better spots.

7-2 suited is among the weakest hands; playing out of position against the big blind with it is unprofitable even at a discount, so folding the small blind is the standard play.

K8o on the button in a 3-handed game is a standard open; raising to 2.5bb applies pressure on the blinds with position.

Js5o is too weak to continue out of position against a button open, especially with the big blind still to act. Folding avoids a dominated, low-equity spot.

J6 offsuit is weak; facing a raise with poor pot odds against a button raiser, folding is correct.

K5o is a marginal but playable button open in three-handed poker; a small raise takes the initiative in position rather than limping or folding.

5-7 offsuit is weak and facing a raise with two opponents left to act, folding is best.

J8o in the big blind facing a 2.5x button open with 100bb; getting 400:150 (~27% equity needed) which J8o clears against a wide button range, so a call is standard.

Out of position with J8 that missed a paired ace-high board; checking to the preflop raiser is standard and keeps the pot small with no equity to bet for value.

K5o has no pair, draw, or board interaction on A99, and seat_3 checked. Checking back is free and avoids bloating a pot I am unlikely to win.

Button checked back the A99 flop showing weakness; I have only a gutshot to the ten and no showdown value, so a semi-bluff bet of ~2/3 pot can fold out weak hands now and sets up river barrels.

King-high with no pair or draw on a paired ace-queen board is too weak to call a turn bet.

Raising A5 suited on the button to build the pot and take initiative preflop.

J7 offsuit in the small blind facing a 3x open from the button is a clear fold; it's dominated by the button's opening range and plays poorly out of position.

5-7 offsuit is too weak to continue out of position against a button open, so folding is the highest-EV option.

54o on the button in a 3-handed game is a marginal but playable open-raise with position; a small raise to 2.5bb takes advantage of fold equity against the blinds while keeping it cheap.

K7 offsuit is too weak to continue out of position against a button open, so folding is the highest-EV option.

9h4h is a weak offsuit-ish hand facing a raise with a player behind; not worth calling 150 more out of position.