Ok in this hand I want to know how you guys extract the most from your opponents.

I'm on the CO with [6d] UTG folds and I raise to 4$, two folds and BB calls. We both have 100$, i have no reads or stats because this is my 3rd hand at the table.

FLOP (pot 8.50$): [8d][4c]

He checks to me and I CB with 6$ and he just calls the bet.

Turn (pot 20.50$):

He checks again so now I bet 12$ into the pot he again just calls. I had no clue what to put him on, A8 or A4 crossed my mind maybe an overpair like TT.

River (pot 44.50$):

He checks again. So what should I do here? I mean how much should i bet with no good reads? Should my turn bet be different? Thanks in advance, You're great.

You can't even consider checking the river.

I would have bet flop and turn harder, but meh. As played I would just try to get value from a T8 or something like that, I really doubt he has an overpair or a 4 as he would have checkraised the turn if he did.

I'd bet somewhere in the $30-$34 range and expect to stack him either way if he has a 4.

I'm prolly betting 2/3 on turn and potting river