Hold'em table

Opening from the button with an Ace in 3-handed play is standard to apply pressure on the blinds.

A9o is playable versus a small button open in three-handed poker, but calling out of position realizes poorly. A 3-bet to 650 takes the initiative and folds out much of the button's junk.

65 offsuit is far too weak to call a 3-bet of 650 out of the big blind; folding is clearly the best play with such poor equity against a raising range.

A3o is too weak to continue against a preflop 3-bet, even in position.

3To is too weak and disconnected to open from the button, and limping invites a squeeze, so folding preserves the full stack.

A7s is a strong heads-up hand against the big blind after the button folds; raising builds the pot with a likely best hand and applies fold equity.

Folding 84s in the big blind facing a 3x open from the small blind as it lacks sufficient playability and equity.

Pocket queens on the button 3-handed is a premium hand; a standard 3bb open builds the pot for value while keeping worse hands in.

4s 2s is too weak to call a 3bb button open out of position with the big blind still to act.

84 offsuit is too weak to call a button raise out of position; folding avoids a dominated spot with poor equity.

95o is too weak to open from the button even in 3-handed play.

T6 offsuit is too weak to continue out of position for another 50 against the big blind; the small blind already posted is a sunk cost.

96 offsuit is too weak to open or limp from the button in a three-handed pot, so folding avoids a negative-EV spot.

63o is one of the weakest SB-vs-BB hands and I'd be out of position postflop; folding saves the extra 50 rather than defending a marginal spot.

Pocket sixes on the button is a standard open-raise spot; I raise to 300 to build the pot and apply pressure on the blinds with a decent pair and position.

Holding 92 offsuit in the small blind against a button open is an automatic fold.

J5 offsuit is too weak to continue out of position against a button raise; folding saves chips.