Hold'em table

Q8o is a profitable button open three-handed with position on both blinds; a standard 3x raise builds the pot while retaining initiative.

A3o is too weak to defend out of position against a 3x button raise with the big blind still left to act.

62 offsuit is too weak to continue against a button open; folding saves chips.

T3o is far too weak to open, even on the button in 3-handed play. Standard fold.

Button folded, so this is heads-up versus the big blind with AQo. Raising to 300 builds the pot with a strong hand and denies a free flop.

75 offsuit is far too weak to call a 3x raise out of position heads-up; even with pot odds, my equity against a raising range is poor and I have no position or implied odds to compensate.

A3s is a playable suited ace on the button in three-handed play, so I open to 3bb to take the initiative with position rather than flat or fold.

Q9 offsuit is too weak to defend the small blind against a 3x button raise while out of position against two players; folding avoids dominated spots.

97 offsuit is too weak to defend against a 3bb button open out of position.

K2o is the worst king-high and gets dominated by any Kx while having almost no postflop playability; even on the button 3-handed, folding beats calling or a light raise without any fold-equity reads.

Holding pocket eights blind-versus-blind, opening with a standard raise to 3 bb for value.

A2o is dominated by much of a 3bb small-blind raise and has poor reverse implied odds, so folding is the higher-EV play.

Raising 2.5bb on the button with suited connectors (Ten-Nine suited) to take the initiative with position.

5-2 suited is too weak to continue against a button open; folding the small blind saves chips.

JTs is a strong suited broadway on the button in a 3-handed pot, so I open to 3x rather than flat the big blind.

Q2o is far too weak to call 3bb out of position against a raiser with a player behind.

K2o is too weak to defend out of position against a 3x open.