Hold'em table

Holding 42o on the button is too weak to open or call, making fold the clearly optimal play.

Six-two offsuit on the button against two random hands is far too weak to call 100 into a 150 pot or bluff-raise; folding preserves chips for better spots.

58o is too weak to continue out of position against the big blind after the button folds, so I give up the small blind rather than call or raise.

Pocket queens are a premium hand on the button, so I open-raise to 3x rather than just call and give the blinds a cheap flop.

AKo is a premier holding and standard 3-bet value hand out of the small blind against a button open.

62 offsuit is the worst hand in the deck, and I'd be calling 1000 into a 1500 pot against a 3x raise plus a re-raise. Folding is clearly correct.

Pocket queens are well ahead of a small-blind 3-bet in a three-handed game, and I have position if called. A 4-bet to 3000 builds the pot for value while still getting called by worse pairs and strong broadways.

With AKo in a 3-handed game facing a button 4-bet, 5-bet jamming maximizes fold equity and ensures realizing our full equity while blocking AA and KK.

Pocket queens need about 35% equity to call 7000 into a 20100 pot, and they have that against a tight AA/KK/AK shove range, so calling is clearly +EV.

74s is too weak to open from the button even in 3-handed play.

K-high on the button 3-handed has decent fold equity against two blinds, and I keep position if called. I'll fold quickly to a 3-bet or if I miss the flop badly.

95o is too weak to continue against a button open with the big blind still to act, so folding is the highest-EV line.

QhTh is far too strong to fold to a button open getting favorable pot odds in the big blind; calling is standard.

Check to the preflop raiser on an Ace-high board with a gutshot straight draw.

Whiffed the A-J-5 flop with K-high; checking back keeps the pot small and sees a free turn with showdown value.

Turned the broadway straight; betting for value against pairs, two pairs, and spade draws after flop checked through.

My pair of kings has a weak kicker on a board with an ace and three spades; opponent's preflop-raise line betting the turn beats me with Ax, better Kx, or any spade. Calling 450 into this range has poor equity, so folding is cheapest.

Q3 offsuit is too weak to call or open from the button in a three-handed pot; folding avoids dominated spots and wasted chips.

82o is far too weak to complete or raise from the small blind against the big blind.