Hold'em table

Pocket eights on the button 3-handed is a clear standard open; raising to 300 applies pressure and builds a pot in position against likely weaker ranges.

26s is too weak to continue out of position against a button open, with the big blind still to act. Folding avoids paying 250 into a dominated, low-equity spot.

Weak offsuit hand (4d Tc) facing a 3x raise; not worth calling from the big blind.

T7s is a playable suited hand on the button, so I open to 2.5bb to steal the blinds and build a pot with decent equity and playability.

2s3c is the worst hand in hold'em and seat_2 has already raised to 2.5bb. Calling 150 more to play out of position with no equity is -EV; folding preserves chips for a better spot.

Weak offsuit hand (5s Td) with no pair or strong draw potential from the button; folding avoids unnecessary investment.

Heads-up with Q7o from the SB, I have decent equity against the BB's wide calling range, so I raise for fold equity and value.

J2s is too weak to continue out of position against a 3bb small-blind raise after the button folds. Folding avoids a dominated, low-equity spot.

A9s on the button is a standard open-raise; I'll take the initiative and play in position against the blinds.

9-5 offsuit is too weak to continue against a button raise from the small blind, especially out of position. Folding avoids putting more chips in with a dominated, unconnected hand.

J4 offsuit is weak facing a 3x raise; folding to preserve chips.

Three-handed on the button, 98o is a standard open: it has enough connectivity to play postflop and a small raise takes the initiative rather than limping or folding.

98o offsuit is too weak to continue from the small blind facing a raise, especially out of position against two players.

6-8 offsuit from the button facing a raise-limped pot isn't worth playing; folding preserves chips for better spots.

A5o is a marginal hand but heads-up in the SB with the button folded, a small raise to 250 puts pressure on the BB and can win the pot preflop or build a pot with position.

93o is too weak to continue against a preflop raise, even heads-up from the big blind. Folding avoids putting more chips in with a dominated, unconnected hand.