Hold'em table

On the button 3-handed, Q8o has enough equity and position to open-raise, applying pressure to the blinds and potentially winning the pot preflop or postflop with initiative.

A3 offsuit is too weak to continue out of position against a button open, especially with the big blind still to act. Folding avoids dominated ace spots and a poor price to chase.

6s 2d is trash unsuited rags facing a standard 3x button open; standard fold from the big blind.

T3 offsuit is too weak to call or raise from the button in a three-handed pot, so folding preserves my stack.

Holding AQo in the small blind after the button folds is a standard value raise blind vs blind. Raising to 3bb builds the pot with a strong holding.

5c7d offsuit is far too weak to call 200 more against a 3x small-blind raise; it flops poorly and is often dominated, so folding is clearly best.

A3s is well within standard opening range on the button in 3-handed play; raising to 2.5bb allows us to take initiative in position.

Q9 suited has decent playability against a modest 2.5x open with two players in; folding is too tight and 3-betting this hand out of position is thin. Calling to see a flop at a good price.

97o is too weak to continue against a button raise and a small-blind call, especially out of position. Folding avoids a dominated, low-equity spot.

I only have middle pair of nines on an ace-high board against the preflop raiser, so checking keeps the pot small and lets me gauge their aggression before committing more chips.

We flop top pair on a dry board in position as the preflop aggressor, making a small 1/3 pot continuation bet standard for value and equity denial.

Facing a small 1/3-pot c-bet with middle pair (nines) plus a queen kicker, I only need ~20% equity and am likely ahead of much of his c-betting range, so calling cheaply is clearly better than folding; raising Q9 into an ace board just inflates the pot out of position.

I flopped top two pair (queens and nines) and the turn Qh improved me, while my Qs/9d block AQ, QQ and 99. Checking keeps a check-raise in reserve and lets the preflop raiser keep betting one-pair hands like KK/AK.

I have top pair with a weak kicker, so checking behind controls the pot size and allows me to reach showdown or evaluate on the river.

I have top pair with a low kicker that doesn't play over the board cards. Checking behind secures showdown value against missed draws and weaker pairs without risking facing a raise.

K2s offsuit on the button — I'll raise for position and fold equity, but a modest size keeps risk low with a weak kicker.

Pocket eights is ahead of a typical button open in three-handed play, so I three-bet to take the initiative out of position and charge the big blind.

A2o is easily dominated and unplayable facing an open and a 3-bet out of position.

T9 suited is a strong button open in three-handed play, so I raise to 2.5bb to build the pot and apply pressure.

52s is too weak to defend out of position against a button raise with the big blind still to act.

JTs is a strong suited connector on the button in 3-handed play; raising 2.5bb to build the pot and seize initiative with positional advantage.

Q2o is a weak dominated hand and I'm out of position against a button raise; calling 200 more with such poor equity and playability is unprofitable, so folding is clearly best.

K2o is too weak to continue out of position against a button open; folding saves the remaining stack.