Hold'em table

3c7h is too weak to open from the button for a full big blind, so folding preserves the stack.

Ace-king suited is a premium hand and I'm heads-up against only the big blind after seat_1 folded. Raising to 300 builds the pot with initiative and applies pressure without overcommitting.

3h6c offsuit is weak facing a 3bb raise; folding is standard here.

Three-handed on the button, jack-high is within a wide opening range; a standard 3x open leverages fold equity and position, and I can release cheaply if blinds defend.

9-7 offsuit facing a 3bb raise out of position with two players to act is not worth defending; folding preserves chips.

Q3 offsuit is too weak to continue against a button open, so folding the big blind is the highest-EV option.

A7 offsuit on the button is a reasonable raising hand; raise to 250 to isolate and take initiative.

Q5 offsuit is too weak to continue out of position against a button open, so folding is the highest-EV option.

85 offsuit is far too weak to defend the big blind out of position against a button raise, even with decent pot odds; folding avoids a tough postflop spot with a hand that rarely realizes equity.

Q2o is too weak and disconnected to open from the button even three-handed; folding avoids dominated spots.

3h6c is one of the worst hands to defend from the small blind against the big blind; calling 50 more with poor playability and dominated equity is not worth it.

Nine-four offsuit is one of the weakest holdings even 3-handed; calling a full big blind from the button with a hand that rarely connects is unprofitable, so I fold and wait for a better spot.

Cheap to complete SB with Q8o heads-up against BB after button folded; not strong enough to raise.

With 85 offsuit in the big blind and the small blind completing, checking is best. The hand is too weak to raise and there is no cost to see a flop.

I have bottom pair with a weak kicker on a King-high board; checking to control pot size is best here.

I have middle pair with a weak kicker on a king-high board with a flush draw, so checking controls the pot and realizes showdown value after the small blind checked.

I hold two pair (queens and eights) on a wet board; betting for value while it's still cheap enough to keep seat_1 in with weaker hands or draws.

I have only a weak pair of eights with no draw, and the turn bet is large enough that continuing is unprofitable against a likely better made hand.

Qd6c offsuit is a weak hand from the button facing a raise; folding preserves chips for better spots.

J3 offsuit is too weak to play out of position against the big blind after the button folds, so I give up the small blind rather than continue.