Hold'em table

On the button three-handed, J8o is a standard open-raise to attack the blinds with position; 300 applies pressure while keeping the pot manageable if called.

Q2o is far too weak to defend out of the small blind against a 3bb button open.

AK offsuit is ahead of a button open and plays well as a 3-bet. Raising to 1000 builds the pot and denies cheap equity while keeping fold equity against a wide button range.

J8o is far too weak to continue against a big blind 3-bet; calling 700 into a 1350 pot with a dominated hand just burns chips. Folding preserves my stack for better spots.

Opening AKo from the button with a standard 2.5bb raise to build the pot and leverage position.

57o is too weak to continue out of position against a button open, with the big blind still to act. Folding avoids putting more chips in with a dominated, unconnected hand.

Three-handed on the button, 95s is a reasonable steal open with suited equity and position; a 3bb raise pressures the blinds more than limping.

82s is a weak hand and calling 250 out of position against a button 3x raise gives poor equity for the price. Folding is the clear -EV avoidance play.

83s is far too weak to defend out of position against a 3bb button open.

54 offsuit on the button is too weak to open profitably against two covering stacks with no reads; folding costs nothing and preserves chips for better spots.

Holding 43 offsuit out of position in the small blind is a clear fold despite having only 50 chips left to call.

K7o is on the bottom edge of a 3-handed button opening range; folding avoids playing a weak offsuit king out of position postflop if contested.

96o is too weak to continue out of position for another 50 after the button folded; folding avoids playing a dominated hand.

A8o is playable from the button in three-handed poker, so I open to 2.5bb to take the initiative rather than limp or fold.

K3s is far too weak to defend the small blind against a button raise; I'm dominated by any better king and out of position against two players, so folding is clearly best.

K7o is too weak to defend out of position against a 2.5x open from the button.