Opp is a 6 max reg, somewhat active raising on the BU, isn't threebetting light, although he is calling 100% of my threebets so he probably isn't giving them much credit, and i suspect he's playing some 6 max tables so isn't paying too good attention, and therefore thinks im threebetting lighter than i am.
He's generally passive, often not thin vbetting.
My question is flop and river, i assume people tend to have a pretty balanced frequency of decisions on them.

POKERSTARS GAME #12725073366: HOLD'EM NO LIMIT ($3/$6) - 2007/10/19 - 18:04:25 (ET)
Table 'Devota III' 2-max Seat #2 is the button
Seat 1: heybude ($806 in chips)
Seat 2: adsanman12 ($990.50 in chips)
adsanman12: posts small blind $3
heybude: posts big blind $6
*** HOLE CARDS ***
Dealt to heybude [Qd Kh]
adsanman12: raises $12 to $18
heybude: raises $48 to $66
adsanman12: calls $48
*** FLOP *** [Ac Kd 6s]
heybude: bets $90
adsanman12: calls $90
*** TURN *** [Ac Kd 6s] [7c]
heybude: checks
adsanman12: checks
*** RIVER *** [Ac Kd 6s 7c] [3s]
heybude: bets $174

Flop I assume we check a good amount but what about river?