Hold'em table

9h 4s is a weak offsuit hand with no playability. I'm in the big blind position effectively (button) and facing a raise, so folding is the correct play to preserve chips.

79o is too weak to continue out of position against the big blind after the button folds; calling or raising has negative expectation, so I give up the small blind.

87o is too weak to open first-in from the button in a three-handed pot, and calling does not close the action. Folding avoids investing with a dominated offsuit hand.

J6 offsuit is a weak hand heads-up vs BB with a raise likely; folding the small blind is fine since button already folded and no pot odds justify calling with such a weak holding out of position.

Weak offsuit J9 from the button facing a raise-less limped pot isn't strong enough to invest in a 3-way pot with a marginal hand; folding preserves stack for better spots.

I hold 4d2h, a weak offsuit hand that is unlikely to improve to a winning hand. With seat 3 already folded and only seat 2 remaining, I will fold to avoid losing chips with a poor hand.

Calling the big blind with Kc7c on the button is a standard play to see a flop cheaply and potentially realize implied odds if the hand improves.

56o is too weak to complete from the small blind out of position, especially with the big blind still able to raise. Folding saves chips for better spots.

I'm the big blind with a weak hand (J4o) facing no raise, so checking is free and best.

I have middle pair (jacks) with a backdoor flush draw on board present, so betting protects my equity and can extract value from weaker hands while only facing one opponent.

I have a backdoor flush draw and a gutshot straight draw with Kc on a J-K-8 board, giving me decent equity. Calling keeps the pot manageable while I wait to see if my hand improves on the turn.

I only have a weak pair of jacks with a low kicker on a scary board with two-flush and straight possibilities; checking to control pot size.

The board is paired with an Ace on the turn, and my Kc gives me a weak top pair that is vulnerable to better Kings or an overpair. Checking allows me to control the pot size and avoid building a big bet with a marginal hand against a player who just checked back.

I only have a middling pair of jacks with a weak kicker on a scary board; better to check and see showdown than risk value-betting into a possible better hand or getting raised.

The board is paired with an Ace and two diamonds, and my hand is Kc7c, which is weak and unlikely to improve. With no call required and a checked pot, checking is the safest play to avoid building a bigger pot with a marginal hand.

92 offsuit is too weak to open from the button, so folding preserves chips.

Q7 offsuit is weak; button folded, only BB left to act, but not worth investing more with a marginal hand out of position.

A7 offsuit on the button is a decent raising hand heads-up-ish; raise to isolate and take initiative.

With 2s9s and a 300 raise, I'm out of position and the pot odds don't justify continuing preflop.

65o is too weak to defend the big blind against a button open; calling 200 into 450 is not justified by this hand's equity or playability.