Hold'em table

98o on the button in a 3-handed game is a standard open; raising to 2.5bb gives fold equity and position for the rest of the hand.

T-J offsuit is a marginal hand that doesn't warrant calling a 2.5x raise out of position. Folding preserves chips and avoids playing a weak hand against an aggressive opponent who will have positional advantage postflop.

Weak offsuit-ish hand (2s-Ts not connected well), I'm on the button but facing a call with a marginal hand; folding preserves chips for better spots.

T7o (offsuit) is a weak hand in the small blind. With seat_2 folded and only seat_1 (big blind) remaining, calling 50 more chips is marginal at best. Folding is the prudent choice to preserve chips, especially early in the match when position and hand strength matter significantly.

6-7 offsuit is a weak hand in early position. With only 100 chips to call and an unsalvageable holding, folding preserves chips for stronger opportunities.

Button folded, so it's SB vs BB heads-up; J7o is a reasonable steal/raise hand with position disadvantage but fold equity, and a 3x raise is standard in blind-vs-blind.

Q6o facing a 3x raise with only two players left has weak equity and no implied odds worth continuing for.

3s4d offsuit is a weak, disconnected-suit hand on the button facing two players behind; folding preflop is the standard play at 100bb.

Heads-up now with positional advantage postflop; raising with T8o is a reasonable standard open against a single opponent.

A7o from the button is a reasonable raising hand against blinds; a standard 3x open applies pressure.

3h-Js is a weak hand from the small blind facing a 3x raise from the button. The button has position advantage and this hand plays poorly out of position in a 3-way pot. Folding minimizes losses with marginal holdings.

T2 suited is a weak hand out of position against a button open; folding avoids playing a dominated hand with poor playability.

Button folded, so it's heads-up vs the BB with 8c3c suited for half a bet. Completing from the SB with a suited hand at 3:1 pot odds is reasonable; raising a weak hand out of position is less attractive.

J7o is weak, and checking the big blind for free with SB limp is standard; no reason to raise.

Limped pot heads-up, I have 8-high with a backdoor club draw and no made hand on Tc 2d 9d; checking keeps the pot small and lets me see a free turn out of position.

I have jack-high with a backdoor flush draw, no made hand or strong draw; checking is free and keeps the pot small.

I hold 3c8c on Tc 2d 9d 4d with no pair and only a weak gutshot; the board is wet with three diamonds and the pot is tiny, so checking keeps the pot small and lets me realize equity cheaply.

I only have a diamond draw and jack-high with no pair; checking keeps the pot small while I see a free river.

8-high cannot win at showdown; a small bet on a four-flush board needs to fold out opponent only ~37% of the time and opponent showed no interest on any street.