Hold'em table

Q6o is too weak to open from the button; folding avoids a dominated, poorly connected hand out of position postflop.

Cheap price to see a flop heads-up against the big blind with a speculative low connector hand.

J7o is marginal, but I'm in the big blind with no one to call and the small blind only limped, so I'll take a free flop rather than build a pot out of position with a weak hand.

I have no pair, no draw, and no equity to bluff profitably out of position against two players; checking keeps the pot small.

I have jack-high with no draws on K-9-A, and the small blind checked to me giving a free card. Checking back in position avoids building a pot with a weak hand while keeping the option to bluff later streets if needed.

Board is Kc9dAdAc, I have 5h4s with no pair or draw; checking is free and keeps pot small against likely weak or strong hands.

No pair, no flush draw, and board is already checked twice; no reason to bet with a busted hand, just check it down.

K9o on the button in a 3-handed game is a reasonable raising hand; a standard open builds the pot with positional advantage.

45 offsuit is far too weak to call a 2.5x raise out of position, especially with the big blind still to act behind me and able to squeeze. Folding preserves chips for better spots.

AKo is a premium hand against a button open and a folded small blind, so I 3-bet to build the pot and take the initiative rather than flat.

K9o is too weak to continue against a big 3-bet out of position postflop; folding preserves chips.

Button folded, so this is heads-up versus the big blind and Q3s is getting 3:1 to complete. Calling keeps the price cheap out of position rather than bloating the pot with a weak suited queen.

K5 offsuit is weak; checking for free since limper called and I'm big blind with no raise needed.

Queen-high with no pair and no draw on an ace-high flop has little equity, so checking is better than bluffing into the big blind.

No pair, no draw, king-high on an ace-high board; checking is free and I have no reason to bet or bluff into two players.

Queen-high with no pair or draw on an ace-high board; checking is free and a bluff has little equity or fold equity after the flop check-through.

K-high with no pair or draw; checking to see the river for free.

Queen-high has no made hand on a paired ace-high board, and a river bluff into the big blind is unlikely to be profitable. Checking avoids putting more chips in with almost no showdown value.

King-high with no pair on a checked-down board; no value in betting, so I check to showdown.

9h3h is too weak to open from the button even three-handed; folding avoids investing chips with a dominated, low suited hand.

With the button folded, I'm heads-up against the big blind holding a decent King-high hand; raising to build the pot and apply pressure is favorable in this spot.

Q7 offsuit is dominated by the SB's raising range and I'd be out of position postflop. Calling 150 into a small pot with reverse implied odds isn't worth it.

As the first to act preflop 3-handed, K4o is a reasonable steal-raise hand from the button given the wide opening range in this format.

K6 offsuit is far too weak to continue against a button raise while out of position from the small blind. Folding and saving chips for better spots is the profitable play.

J7 offsuit is too weak to continue out of position against a button open, so folding is the highest-EV line.

Suited connector on the button in 3-handed play is a standard opening hand; raising builds a pot with position and can win the blinds outright.

AJo is well ahead of a button open in three-handed play, and I am out of position, so a 3-bet to 1000 builds the pot and denies equity rather than flatting.

Q4o offsuit facing a raise and a big 3-bet with two players still to act behind isn't worth continuing; folding preserves chips.

Facing a large 3-bet (to 1000) with 76s, I lack the equity to call 700 into 1400 profitably, and my hand flops poorly against a strong range. Folding is the clean play despite being on the button.