Hold'em table

On the button with a suited king, raising to 250 to build the pot and take initiative against two players who haven't shown strength.

ATo is ahead of a typical button open range in three-handed play, and calling 200 into a 400 pot is a reasonable price to see a flop rather than folding or bloating the pot with a three-bet.

J9o is marginal, but I only need 150 to call into a 600 pot with two players already in, giving me good implied odds to see a flop in position-less BB. Folding is too tight at these prices.

Ace-high with no pair or draw on 5-6-9, out of position against two players. Checking keeps the pot small and lets the preflop raiser define their range.

I flopped top pair (nines) with a decent jack kicker on a coordinated board; betting ~half pot builds the pot and charges draws like 78 or flush draws while getting value from weaker pairs.

Bottom pair with a weak kicker facing a flop raise after a check is not strong enough to continue profitably out of position.

Ace-high with no pair or draw on 569 is too weak to call a half-pot flop bet heads-up. Folding preserves chips for better spots.

43o is too weak to open from the button for a full big blind; folding costs nothing since I have no chips invested.

On the button 3-handed with a suited hand, I'll raise to apply pressure and potentially win the blinds, keeping initiative with position even with a weak jack.

K6 offsuit is too weak to continue out of position against a button raise to 3bb; folding is the highest-EV option.

2-6 offsuit is a weak hand from the button facing a raise to call; folding preserves chips.

Button folded, so this is heads-up versus the big blind. Ace-deuce offsuit is worth completing for 50 rather than folding or bloating the pot.

Pocket queens are a strong hand heads-up against a limper; raising builds the pot for value and isolates the small blind while protecting against cheap flops.

A2o is too weak to continue out of position against a BB raise after the button folded; the ace is often dominated and the hand plays poorly postflop.

87 suited on the button is a standard open in three-handed play; raising to 3bb takes the initiative and can fold out weaker hands before the flop.

J9s is a weak hand out of position against a 3x button raise; calling with poor equity and no position is unprofitable, so folding is the best play.

J6 offsuit is weak, facing a 3x raise with poor pot odds and no position; folding is correct.

K3 offsuit is too weak to open even on the button in 3-handed play; both blinds still have position postflop after me, so folding is the highest-EV line.

Getting good pot odds heads-up with a weak but playable hand; a call keeps costs low while seeing a flop.

T9o is playable but not strong enough to raise out of position against a completed small blind. Checking is free and keeps the pot small.

I have an open-ended straight draw (5-6-7-8 with T kicker) needing a 4 or 9; a half-pot semi-bluff bet builds the pot and can win it outright.

Open-ended straight draw with two overcards gets the right price against a half-pot flop bet, and position lets me realize equity cheaply.

Only a gutshot straight draw with no pair; checking to control pot size and see the river cheaply.

I have an open-ended straight draw and the opponent checked the turn, so a half-pot semi-bluff applies pressure and builds the pot when I hit.