First orbit at the table. No reads.

I had him on some kind of 2 pair hand by the river; outside chance of T9 or T8 (but I'm never that lucky). I figured T7 or flopped 2 pair would pop me with my flop bet. A lot of players are going to bet the A on the turn with anything when checked to I imagine. I'm just not sure 2 pair calls a shove (again, too early to tell how much he tries to pick off bluffs or how well he reads the board). My SD isn't that well disguised, is it? Is a pot bet just about right? Going into the river, our stacks are ~$20. A PSB leaves some room for him to shove T9 or T8 if he wants. Just trying to get the most value out of this hand and that board. Thoughts?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
5 players
Converter

Stack sizes:
UTG: $7.60
CO: $37.75
Button: $29.65
Hero: $24.75
BB: $24.80

Pre-flop: (5 players) Hero is SB with T J
2 folds, Button calls, Hero calls, BB checks.

Flop: 9 8 6 ($0.75, 3 players)
Hero bets $1, BB calls, Button calls.

Turn: A ($3.75, 3 players)
Hero checks, BB bets $3, Button folds, Hero calls.

River: 7 ($9.75, 2 players)
Hero bets...