Hold'em table

4h 8d is a weak offsuit hand with no postflop playability; I'm out of position and facing a 100bb effective stack, so folding avoids getting dominated in a multiway pot.

Heads-up with a pocket pair, a small raise builds the pot and applies pressure while keeping the pot manageable.

K6 offsuit is too weak to continue against a 3x small-blind raise; it is often dominated and realizes poorly even in position.

Three-handed button steal opportunity with a speculative hand; raising applies pressure on the blinds.

A3o is too weak to continue out of position against a button open with the big blind still to act. Folding avoids dominated aces and reverse implied odds.

I hold 9s3s, a weak hand that is unlikely to win against a preflop raise from the button. Folding preserves my stack for better opportunities.

46o is too weak to call or raise from the button against a full big blind, so folding preserves chips.

With Ah5d, I have no pair and only backdoor flush/straight potential. The small blind already folded, so I'm heads-up against the big blind's 100-chip bet; calling 50 with such a weak hand is a losing play, and folding preserves my stack.

I have Jd Ah, a strong suited hand. The pot is 150 and I only need to call 100 more. Calling keeps my stack intact while seeing a flop with good equity.

54o is weak from the small blind facing a call and BB behind; folding is cheap and avoids playing a dominated hand out of position.

QTs is ahead of a button limp and the small blind has folded, so a small isolation raise takes the initiative and builds the pot.

With Jd Ah, I have a playable suited connector and an Ace. I'll raise to 700 to build the pot and isolate the raiser, as the min-raise is 700 and I have enough stack.

QTo is too weak to continue OOP against a 3-bet after my isolation raise; the min-raise price does not offset domination risk and positional disadvantage.

Weak offsuit T6 from the button facing action; not worth continuing in a 3-handed pot.

Button folded, so this is heads-up versus the big blind with pocket nines. A raise to 300 builds the pot and gets value from worse hands while keeping the sizing standard.

Calling 200 with Ad 8s is reasonable; the raise is small enough to see a flop without committing too much of my stack. I'll play the hand postflop.

I have jacks and nines on a paired flop and the BB called preflop, so a small value bet gets called by worse pairs and floats while keeping the pot manageable if they have a jack.

I have top pair with an Ace kicker on a J-2-J board, which is a strong hand. The opponent's raise is small relative to the pot, so calling is +EV and keeps their range wide.

I have jacks and nines on a queen turn, so I still have showdown value but Qx and any jack are ahead. Checking controls the pot out of position rather than bloating it.

I have top pair with an Ace kicker on a paired J/Q board, but the opponent's turn check suggests weakness. Checking back keeps the pot controlled and allows me to potentially win at showdown without bloating the pot with a marginal hand.

I have jacks and nines, which has real showdown value but loses to queens, jacks, straights, and full houses. A river bet mostly gets called by better hands, so I check and take the free showdown.

Board is paired with two Jacks and I hold only Ace-high; opponent checked twice so a bluff is unlikely to succeed, so I check to control risk and see a cheap showdown.

Q9s is a playable suited hand on the button, so I open-raise rather than limp or fold. A 2.5x raise builds the pot and applies pressure before the blinds act.

Ts7c is a weak hand out of position facing a raise from the button; the pot odds don't justify calling with such marginal equity.

KTo facing a min-raise from button with only 150 to call is a profitable call given pot odds and position advantage heads-up post-flop.

I have top pair with a strong kicker on a fairly dry board, so betting for value and protection against draws makes sense while I have position information from being BB.

Queen-high with only a backdoor flush draw has too little equity to call a 300 flop bet, so folding is the lower-variance play.