Holdem table

J4s is too weak to open even from the button 3-handed; folding preserves chips for better spots.

Heads-up after button folds; 6-7 suited-ish connector plays well as a raise from the small blind to take initiative against a single opponent.

Button folded and the small blind min-raised to 2.5bb. A5o has enough equity and playability heads-up to continue for 150 into a 500 pot rather than fold or inflate the pot out of position.

I have two pair (sevens and sixes) on a flush-drawing board, so I want to bet for value and to charge any flush draws.

Ace-five offsuit has only a gutshot and no heart on a monotone flop, so calling 300 does not realize enough equity against the aggressor.

AQ offsuit is a strong button hand; raising to 300 to build the pot and take initiative against blinds.

T6s is too weak and easily dominated to continue out of position against a button raise, so folding preserves chips.

T7 offsuit is far too weak to defend out of position against a 3x button raise; folding preserves chips for better spots.

64 offsuit is too weak to call or raise even on the button, so folding preserves chips.

Ace-queen suited is a premium hand; I'll raise for value and position from the button, sizing to 3x the big blind to build the pot while keeping the option to fold to heavy resistance.

7-3 offsuit is a weak hand facing a raise from the button; folding is standard here.

52o is the worst offsuit hand and I am out of position against a button open. Folding the extra 200 is clearly better than calling or bluff-raising.

K3o is weak from the button with two players left to act; not worth defending or raising.

T6o is too weak to continue out of position for another 50 after the button folded; calling or raising leaves me dominated and out of position with poor equity realization.

63 suited is too weak to open first-in from the button in a three-handed pot, so folding avoids a negative-EV spot.

Heads-up vs only the BB, 45s has good playability and fold equity; a small raise pressures the BB while keeping risk low.