Hold'em table

7s5d is a weak offsuit hand on the button with no action yet; folding preflop avoids putting chips in with poor equity against the blinds.

AKs is a premium hand heads-up vs BB after button folded; raise for value and to build the pot.

73 offsuit is too weak to continue against a preflop raise, even heads-up. Folding avoids putting more chips in with a dominated hand.

I'm on the button with a suited connector-ish hand (8c-Tc), a standard raise to isolate the blinds and take advantage of position is reasonable.

A3o is too weak to continue out of position against a button raise, with the big blind still to act. Folding avoids a dominated, hard-to-play hand.

4-6 offsuit is too weak to call a raise from the big blind; folding preserves my stack against a likely strong hand.

J7o is too weak and poorly connected to open from the button against two live blinds, so folding preserves chips.

7h 8s is a weak hand, and the big blind has already invested more. Folding avoids losing chips with a speculative hand that is unlikely to improve enough to justify a call or raise.

7h9d is a weak offsuit hand with no immediate playability; folding avoids investing chips in a multi-way pot where I'm out of position postflop.

7-2 offsuit is the worst starting hand; folding to save chips is correct even heads-up here since button folded.

KQ suited on the button is a strong hand; raising to build the pot and take initiative against blinds.

Pocket threes are too strong to fold to a single button raise in three-handed play, and calling keeps the pot small while retaining set value out of position.

I have Q6o, a weak hand that doesn't play well out of position. The pot is 700 and I need to call 200 more, which is a tough price with such a marginal hand. Folding keeps my stack intact for better opportunities.

Pocket threes are an underpair on a connected three-diamond flop against the preflop raiser, so betting has little value. I check and keep the pot small out of position.

Monotone diamond flop with no pair, no flush draw, and only a gutshot for me; better to check back and control pot size given the flush-heavy texture.

Pocket threes with no diamond are nearly worthless on a four-flush board, and a bet only gets called by better. Checking is free and keeps the pot small.

I have King-high with zero diamonds and no pair or draw, so there's no value in betting into a board where any single diamond gives an opponent a made flush; better to check and preserve chips.

Pocket threes have little value on a four-diamond river, and a bet only gets called by better hands. Checking is free and keeps a chance to win if the button also checks.

I have no pair, no flush (four diamonds on board but my hole cards are hearts), so a river bluff risks a call from a diamond; better to check and see the showdown given the passive action so far.

K8s is playable from the button in three-handed poker, so I open to 2.5bb rather than limp or fold.

I have 5h7d which is a weak hand, and seat 3 opened with a raise to 250. The pot odds don't justify continuing with this speculative hand, so folding is the correct play.

J6 offsuit is weak facing a raise; not worth defending BB here.