Hold'em table

6-7 offsuit on the button in a 3-handed game is a marginal hand with decent playability. Calling 100 to win a 250 pot gives good odds and lets me see a flop in position.

A7 offsuit is strong enough three-handed to raise a button limp. Raising to 450 pressures the limper and avoids giving the big blind a free flop.

Facing an isolation raise to 4.5bb from the small blind with the limper still to act, A8o is easily dominated and plays poorly multiway out of position.

6c7s is a suited-ish connector-type hand (offsuit) getting about 650+350 pot odds: 350 to win 650 with position on the button vs a small blind raiser. Calling is reasonable, cheap enough, and avoids bloating the pot out of position-less spots; folding is close but the price is good.

A small continuation bet pressures the limper's unpaired hands on a paired board while keeping the pot manageable with ace-high.

I hold a pair of sixes with a king on board, giving two pair (Kings and Sixes) with a decent kicker. The pot odds are good at 300 to win 1300, and the opponent's small bet could be a continuation bluff, so calling is better than raising.

Ace-high has some showdown value, and a turn bet is unlikely to fold out many of the hands that called the flop. Checking controls the pot and lets me reassess on the river.

I have kings and sixes, which beats most of the hands that called preflop and the flop. Villain checked the turn, so a half-pot bet gets value from weaker pairs and denies equity to draws.

Ace-high has no meaningful draw on this turn. After the flop call and turn bet, continuing for 800 would rely too heavily on the opponent bluffing.

J4 offsuit is a reasonable button open in a three-handed game. A small raise uses position without committing much of the stack.

J4o is far too weak to defend out of position against a button open.

8-2 offsuit is the worst starting hand. Calling 125 into a 375 pot offers decent odds, but I'd be out of position with a weak hand against a button raiser, so I fold.

86 offsuit is too weak to open profitably even on the button in 3-handed play.

9-5 offsuit is a weak hand. Calling 50 more out of position against the big blind is marginal, and it is the kind of hand that loses chips over time, so I fold and save the chips.

KQ suited on the button in a 3-handed game is a strong hand, so raising to 3bb for value and position is standard.

K2 offsuit plays poorly out of position against a button raise, especially with the big blind still to act.

Q5o is too weak to defend against a standard 3x open from the button.

Pocket threes is a profitable button open three-handed, and a 2.5 big blind raise keeps the risk modest while taking advantage of position.

Holding T6o out of position against a button open is an easy fold.

QTo in the big blind is getting 400 to 150, about 2.7 to 1, against a button open to 2.5bb in a 3-handed game. That is a profitable call, and a 3-bet with this hand would be marginal.

Top pair (queen) with a decent kicker on a fairly dry flop, heads-up and out of position. Betting about 64% of the pot for value and to deny equity to overcards and draws; the button's preflop raise range is wide, so I expect worse hands to call.

Pocket threes have little chance to improve on this flop, and calling a substantial bet with an underpair is unlikely to be profitable.

42o is too weak to play even from the button in 3-handed poker, so an easy fold.

3-7 offsuit is one of the weakest hands. Folding gives up the 50-chip small blind, which is cheaper than playing out of position against the big blind.