Hold'em table

Seven-three offsuit is near the bottom of the range even on the button three-handed; calling 100bb-priced bets or raising with it loses too much equity, so folding is clearly best.

Button folded, so KQo is strong heads-up against the big blind. A raise to 300 builds the pot and takes the initiative rather than just completing.

In a blind versus blind situation, JTo has sufficient equity and postflop playability in position to defend against a standard 3bb open.

As the preflop raiser I c-bet one-third pot with KQ on a paired jack board, applying pressure while keeping the price small if called.

I flopped top pair with a decent kicker on a paired board, making this an easy call against a 1/3 pot c-bet in position.

I have king-high with two overcards and no draw on a paired board, out of position against a flop caller. Checking controls the pot and lets me realize equity rather than barreling into a range that often has a jack, a five, or a pair.

I have top pair with a modest kicker on a paired board; checking behind controls the pot size and preserves showdown value.

Board is trip fives with J and 3, so KQ is only trip fives with strong kickers. A bet gets called mostly by full houses and ace-high kickers that beat me, so I check and take a free showdown.

I hold a full house (Fives full of Jacks), which has plenty of showdown value against seat_2's checking range. Checking back realizes my equity safely without risking a check-raise from slowplayed overpairs.

J7 suited is a reasonable button open in three-handed play, so I raise to 3x rather than limp or fold.

A5o plays poorly out of position facing a 3x open from the button, making it a clear fold from the small blind.

54 offsuit is far too weak to defend the big blind against a 3x button raise, especially out of position with no fold equity edge. Folding costs only the blind already posted and is clearly the best EV here.

Pocket eights on the button 3-handed is a clear standard opening raise for value and position.

Ten-six offsuit is a weak hand facing a 2.5x raise from the button with two players still to act behind. Folding is clearly best; calling or raising would just bleed chips with a dominated hand.

32 offsuit has almost no playable equity against a button open, and calling 150 more is a clear leak. Folding preserves the stack for better spots.

43s from the button is a weak speculative hand heads-up-ish; folding 100 to avoid bleeding chips with no positional pressure needed.

Button folded so this is heads-up; A2o has enough equity to raise for initiative rather than only complete.

Q7o is too weak to profitably defend against a 3bb open from the small blind.

76o is too weak to open first-in from the button for 100bb; folding avoids building a pot with a dominated offsuit hand.

43o is too weak to complete or raise from the small blind out of position.

T2o is far too weak to open even on the button in 3-handed play.

Heads-up with Q4s suited, I have position on the BB and a playable hand; a small raise applies pressure and can win preflop or build a pot in position.

Pocket sevens have solid equity against a wide small-blind open after the button folds, and calling 200 into 400 is the straightforward value play.

I hold a flush draw with just queen-high on a low board that connects well with the big blind's calling range, so checking keeps the pot small and gives me a free card to improve.

I flopped a set of sevens on a two-club board, so I bet about two-thirds pot for value and to charge flush draws rather than give a free card.

I have queen-high with only a backdoor club draw on 5c-7c-2d, and the BB who flatted my preflop raise is now betting the flop. With no pair, no real draw, and out of position, calling 400 into 1000 has no justification, so I fold.