Hold'em table

5♠3♥ offsuit is too weak to open or limp profitably, even from the button; folding avoids investing a blind with poor equity and playability.

Holding 73o in the small blind against the big blind is well outside any reasonable continuing range, so folding is clearly best.

84o is far too weak to open from the button even in 3-handed play.

63o is too weak to continue out of position against the big blind after the button folds. Folding saves the remaining 50 chips.

On the button in three-handed play, A3o is a standard open: the ace has value and a small raise pressures the blinds better than limping.

A♠T♥ is strong enough to 3-bet against the button’s open, and a larger out-of-position sizing helps apply pressure while denying equity.

Holding T2o facing an open and a 3-bet, this is an easy fold.

A3o is too weak to continue against a 3-bet; calling needs too much equity and the hand is dominated and plays poorly postflop.

K6 suited is a profitable button open in a three-handed game. Raise to 2.5 big blinds to apply pressure while keeping the pot manageable.

Folding J2 offsuit in the small blind against a button open is standard and trivial.

A7o is dominated too often and plays poorly out of position against a button open, so folding is the higher-EV choice.

53o is far too weak to open on the button even in a 3-handed game.

Button folded, so I only need 50 more into a 150 pot with A4o. Completing is the right price; raising out of position with this hand is unnecessary.

A3 suited is strong enough to raise the small blind’s limp for value and take initiative while retaining good postflop playability.

A4o is too weak to continue out of position against a 3.5x isolation raise after the button folded. Folding avoids being dominated by better aces and playing a marginal hand OOP.

Jack-three offsuit is too weak to call or raise from the button, even three-handed. Folding avoids putting chips in with a dominated, disconnected hand.

With suited ace-king in a blind-versus-blind pot, raise for value and initiative. A 300-chip total bet is a solid opening size against the big blind.

Folding T4o in the big blind facing a 3bb open raise from the small blind as it is too weak to defend.