here is the hand in question...

$10NL (8 Players)
Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

UTG+1 ($10)
MP1 ($11.35)
MP2 ($9.80)
CO ($16.10)
Button ($3.40)
SB ($10.25)
BB ($10)
Hero ($10.90)

Preflop: Hero is UTG
Hero calls $0.10, 3 folds, CO calls $0.10, 1 fold, SB completes, BB raises to $0.6, Hero calls $0.40, CO calls $0.40, SB folds.

Flop: ($1.70) 8d , 4s, 3h (3 players)
BB checks, Hero bets $0.85, CO folds, BB calls $0.85.

Turn: ($3.40) Ts (2 players)
BB checks, Hero checks.

River: ($3.40) 7d (2 players)
BB checks, Hero checks.

Final Pot: $3.40

PELION SAYS:
Id bet overcards and just check it down with a pair. The key is that alot of his range is Ax type stuff that beats our overcards but not our pairs. Also medium PPs are probably calling a bet after the weakness we have shown so far anyway so a bet with 66 doesnt really fold anything we beat and often gets called when we are behind (e.g. to 99).

If we have QJ we have no showdown value but he folds alot of his range to a bet so we bet. We bet however much we need to get him to fold overcards but we assume he will still call with good hands so we dont go crazy. $1.50 should do it.

(We also bet more on the flop )

edit: For the same reasons we probably check AK here because it beats all the A high hands anyway and pairs probably call us after this line.
i seem to do the reverse. and need to fix this.

i feel that if we are ahead we SHOULD bet and extract value. if we are behind, why put more money in a losing pot? i kind of see the point, but need to understand the concept.

why do we bluff with overcards here? is it to bump him off his overcards that DO beat ours because they "cant call our bet with overs"? and, if so, at 10NL arent we concerned that these guys call with anything that gets this far anyhow?

with a pair, assuming the former (that they cant fold), wouldnt we WANT to bet for value here? why check behind? is it because everyone on overs folds, and we only get callers from pairs+ that beat us?

i just dont understand why we dont bet...if we feel we are ahead here?

however, if we are oop...do we hope it checks through if we have 66? or do we bet/fold this river?

obviously, i tend to fire a lot of shit. help.