Hold'em table

84 suited is speculative, but on the button it can profitably open against the blinds. A small raise gives me a chance to take the pot preflop while keeping the risk controlled.

Q9 offsuit is too weak to continue out of position against a button raise, with the big blind still to act.

K4o is too weak to defend out of position against a 2.5bb open from the button.

Ten-seven suited is a standard button open in three-handed play, so I raise to 2.5 big blinds to steal the blinds and build a pot in position.

76 offsuit is too weak to defend out of position from the small blind against a button open.

6-4 offsuit is too weak to defend against a button raise, even with the pot odds; it will often make dominated pairs and has poor postflop playability out of position.

42o is far too weak to open from the button even in a 3-handed game.

T5 suited has reasonable equity heads-up, and the small call gets a favorable price against the big blind.

93o is too weak to raise a limp for value, and checking is free with no bet to call.

I have a strong heart draw and can apply pressure in this heads-up limped pot while retaining plenty of equity when called.

Bottom pair with a weak kicker has poor equity against a two-thirds-pot flop bet, and I have no flush draw. Folding avoids paying off better pairs and strong draws.

Q9 offsuit is a reasonable button open in a three-handed game. I raise to apply pressure to the blinds while keeping the sizing modest.

Jack-six offsuit is too weak to continue against a button raise, especially out of position with the big blind still to act. Folding avoids putting more chips in with a dominated, low-equity hand.

Holding 73o in the big blind against an open raise is an easy fold.

58 offsuit is too weak to open or limp from the button, so folding preserves chips.

84o is too weak to complete or raise from the small blind out of position against the big blind.

K2o has very weak playability and kicker issues even on the button in 3-max, making it a standard fold.

A5 offsuit is strong enough to raise blind-versus-blind and take initiative, while keeping the sizing moderate.

Q4o is too weak to call a 3bb raise even heads-up in position; it is dominated often and realizes equity poorly.