Hold'em table

A7o is a strong hand blind vs blind heads-up, so a standard 3x raise from the small blind is right.

Ah8s is strong enough to defend the big blind against a small blind min-raise, especially heads-up. Calling keeps weaker hands and dominated aces in.

On a paired K-K-6 board a small c-bet works well for us as the preflop raiser: it folds out BB's weak hands, and our ace-high keeps some showdown value if called. A third-pot bet gets there cheaply.

The small flop bet is likely a wide continuation bet. Raising with the nut-heart draw and ace overcard creates fold equity while retaining strong equity when called.

Ace-high with no draw, out of position against a check-raise on K-K-6 two-tone, is too hard to realize equity with, even at 25% pot odds. Folding avoids facing more barrels on later streets.

J4 offsuit is too weak to open from the button in 3-handed play against two blinds, so folding is the standard play.

J4 offsuit is a weak blind-versus-blind holding and does not justify completing out of position.

8-6 offsuit is too weak to profitably enter facing the blinds.

My hand is weak (9-5 offsuit) and I'm out of position against the big blind, so folding avoids a marginal postflop situation.

KQs is strong from the button in a 3-handed game; raise to build the pot and put pressure on the blinds.

K2o from the small blind facing a 3x button open, with the big blind still to act, is too weak to call out of position or to 3-bet. Folding is the standard play.

Q5 offsuit is too weak to defend against a button 3x open from the big blind, especially heads-up postflop out of position.

A small pair on the button in 3-handed play is a standard open-raise; 2.5bb puts pressure on both blinds. Pocket 3s have decent equity and can win the pot uncontested.

Ten-six offsuit is too weak to defend from the small blind versus a button open, especially with the big blind still to act.

We have a strong drawing hand (QTs) and are getting good pot odds to call 150 into a 400 pot. Calling is profitable against the button's likely wide raising range, and we avoid bloating the pot out of position with a marginal hand.

I have top pair with a decent kicker, but I'm out of position against the preflop raiser. Checking lets me see his flop action and keep the pot manageable while potentially inducing a bet from worse hands.

33 has some showdown value but plays poorly against check-raises on this two-tone Q-high board, so I check back in position to control the pot and realize equity.

I have top pair with a decent kicker on a turn that doesn't change much, so betting around two-thirds pot gets value from draws and weaker made hands while protecting my hand.

Pocket 33 is below both board pairs, and the turn lead of about two-thirds pot is strongly weighted toward 9x, Qx and made hands. With only two outs and bad river playability, folding is better than a thin bluff-catch.

4-2 offsuit is an extremely weak button holding and not worth entering with against two blinds.

I'm getting 3-to-1 pot odds to call only 50 more, and 7-3 offsuit is playable enough against a random big blind hand, especially with no rake.

Q7o is ahead of a limping small blind's range and we have position postflop, so a raise to 3.5bb isolates and takes initiative. Checking is also fine, but a modest raise can win the pot outright.

3c7s is a very weak hand facing a raise out of position, so folding avoids paying more with poor equity and reverse implied odds.