Hold'em table

I have 2s Kd, a weak offsuit hand on the button with two players behind, so folding avoids a costly preflop confrontation.

Weak offsuit low cards with only a small blind invested; not worth continuing heads-up against the big blind.

T6s is too weak to continue for a raise-sized call in a 3-handed pot; folding preserves chips for better spots.

Button folded, so this is heads-up versus the big blind with suited Js8s. A small raise takes the initiative and can fold out weak hands while still playing a hand with decent equity and playability.

I have a pocket pair of 7s. Calling 200 to see a flop is reasonable; I can fold if the board misses me. Raising preflop with this hand against one opponent is also possible but calling keeps the pot controlled.

Js8s is air on a dry 752 rainbow with no draw, so I check rather than bluff into the big blind's calling range.

I have a set of sevens on a 7-2-5 board, which is a strong hand. Since I can check and the pot is only 600, I will check to control the pot size and induce bluffs from my opponent.

Jack-high with no pair or draw on a paired board has little value or bluff equity, so I check and realize the free river.

I have a set of sevens on a paired board with a possible full house threat, but the opponent checked twice so I want to control the pot and avoid bloating it without initiative.

I have two pair, jacks and fives, on a checked-down board. A two-thirds pot bet gets value from weaker jacks and one-pair hands that called preflop.

I have a set of sevens on a paired board with a Jack kicker, giving me a strong hand likely ahead of bluffs. Calling 400 chips is a reasonable value bet to avoid bloating the pot unnecessarily while still extracting chips from weaker holdings.

On the button in three-handed play, J4 suited is a reasonable open: it has suited connectivity and fold equity against the blinds. A small raise to 2.5bb keeps the price low while taking the initiative.

I hold 8c 4s, a very weak hand. Facing a raise to 250 with only 200 to call, the pot odds don't justify continuing with such a disconnected low hand.

Ace-high hand, cheap to call heads-up against a min-ish raise, will see the flop.

Ace-high with no pair on a paired queen board; no equity to bet, check and see what develops.

Jack-high with no pair or draw on a paired queen flop has little showdown value, so I check back and realize the free card rather than bluff into a strong board.

Ace-high with no pair on a paired board; checking to control pot size and avoid bluffing into weakness.

I have only a club flush draw and no pair on a paired queen board, so with a free river available after the opponent checks, I check to realize my equity without putting more chips at risk.

I only have ace-high with no pair on a scary board (potential flush/straight), so checking is best; no value in bluffing into two opponents who both checked twice.

Board is paired and coordinated, so my queens-and-jacks two pair loses to any king, queen, flush, or straight. Checking realizes showdown value against weaker missed hands without betting into a range that mostly continues only when ahead.

I have Th9s on the button with no prior action, which is a marginal speculative hand. Facing a 100bb big blind and a 50bb small blind, the pot odds and position don't justify a call or raise with this hand preflop.

Strong AK offsuit heads-up against BB only; raise for value after button folded.

85 offsuit is too weak to continue against a small-blind raise; folding avoids paying 200 with a dominated, unsuited hand.

Button open in a 3-handed pot with only two opponents behind; a standard steal-sized raise with a playable offsuit hand makes sense here.

J5 suited is too weak to continue out of position against a button raise, with the big blind still to act. Folding avoids a dominated spot.

I have QdAd, a strong hand that benefits from isolation. Seat 2 opened to 250 and seat 3 folded, so I will 3-bet to 400 to build the pot and protect my equity.

Q7 offsuit facing a 3-bet is not worth continuing; folding preserves chips for better spots.

Seat 3 folded, leaving a heads-up pot. My 5c-Jc is weak offsuit and unlikely to dominate the big blind's range, so folding minimizes losses.