Hold'em table

A2 offsuit is a reasonable button open three-handed, with position and an ace blocker supporting a blind steal. Raising to 2.5 big blinds applies pressure without overcommitting with a weak kicker.

K6 offsuit is too weak to continue out of position against a button open; folding preserves chips.

J5o is too weak to defend the big blind against a 2.5x open from the button.

A6 suited is playable from the button in a three-handed pot, so I open to 2.5bb to take the initiative and fold out weaker hands.

T9o is too weak to defend out of position from the small blind against a button open, with the big blind still left to act.

Calling costs 150 chips to contest a 550-chip pot, making this suited two-gapper a reasonable big-blind defense against a button open. Its flush and straight potential favor seeing a flop rather than folding or inflating the pot out of position.

With eight-high and only a gutshot straight draw on a two-heart flop, checking preserves chips against the preflop raiser's stronger range. There is no need to build the pot out of position with limited equity.

I am the preflop raiser with ace-high and no made hand, so a small continuation bet pressures the checked range and can win the pot immediately.

I have only a gutshot with no backdoor flush draw, and the 6 of hearts may not be a clean out. Out of position, this hand cannot realize enough equity to justify calling the bet.

32o is the absolute bottom of any opening range, even on the button in 3-handed play. Standard fold.

Completing the small blind costs only 50 chips for 3:1 pot odds against a single opponent. J5 offsuit is adequate for a low-cost heads-up limp but too weak to build a large pot out of position.

K9s is ahead of a typical SB complete, so I raise to build the pot and take the initiative heads-up rather than give a free flop.

J5 offsuit is too weak to call this raise out of position, with poor playability and substantial domination risk. Folding avoids investing more chips in an unfavorable spot.

32 offsuit is too weak to profitably open or call, even on the button. Folding avoids investing chips with poor equity and limited postflop playability.

K4o is too weak to continue from the small blind out of position against the big blind, even at a cheap price.

Button open with K9o in a three-handed pot; a small raise takes the initiative with position rather than calling a dominated offsuit king.

A2s is a premier 3-bet bluff candidate from the small blind against a button open, providing ace card removal and excellent playability.

T3 offsuit is too weak to continue against a button raise and a substantial small-blind three-bet. Folding avoids investing another 900 chips with poor equity and the original raiser still to act.

K9 offsuit is too weak to continue against a 10bb three-bet after my button open; folding avoids a dominated spot out of position.

On the button in a 3-handed game, 54s has solid playability and is a standard opening raise.

QTo is marginal against a button raise when playing out of position with the big blind still to act. Folding avoids domination risk and an unprofitable speculative call.

82o is far too weak to continue against a button open; folding saves the remaining 150 chips.