My first hand at the table so no read whatsoever, unfortunately.

I check behind on the turn as I don't want to scare away hands that might fold a turn bet that might also lead on the river. I was also quite aware of the paired T on the flop and the flat call.

This brings the desired river result - kind of - as villain bets into me. Is the river bet (potsize) callable?

I can't tell if it's something like a PP that thinks it might be goot against my "potential AK" or if it's random T looking to get paid.

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP1 ($104.50)
MP2 ($49.30)
MP3 ($63.35)
Hero ($100)
Button ($103)
SB ($72.15)
BB ($104.50)
UTG ($7.50)
UTG+1 ($73.65)

Preflop: Hero is CO with Q, Q. Hero posts a blind of $1.
4 folds, MP3 calls $1, Hero (poster) raises to $4, 3 folds, MP3 calls $3.

Flop: ($9.50) T, T, 8 (2 players)
MP3 checks, Hero bets $6, MP3 calls $6.

Turn: ($21.50) 4 (2 players)
MP3 checks, Hero checks.

River: ($21.50) 2 (2 players)
MP3 bets $20, Hero ...