Calling river "bluffs" with weak pairs

Is this river call + or - EV against a complete unkown?

GAME #474676848: Texas Hold'em NL $1/$2 2007-01-17 19:24:46
Table Infineon (6 max)
Seat 1: finzfonz ($138.85 in chips) DEALER
Seat 3: musashi77 ($201.00 in chips)
Seat 6: veopuso ($76.75 in chips)
Seat 8: JL37 ($408.76 in chips)
Seat 10: ladden ($125.35 in chips)
musashi77: Post SB $1.00
veopuso: Post BB $2.00
*** HOLE CARDS ***
Dealt to JL37 7:club: 6:club:
JL37: Raise $7.00
ladden: Call $7.00
finzfonz: Fold
musashi77: Fold
veopuso: Call $5.00
*** FLOP *** 7:diamond: 2:heart: 3:diamond:
veopuso: Check
JL37: Bet $18.00
ladden: Fold
veopuso: Call $18.00
*** TURN *** 8:spade:
veopuso: Check
JL37: Check
*** RIVER *** 3:heart:
veopuso: Bet $30.00
JL37: Call $30.00

I've settled on this being a sometimes call sometimes fold depending on how I feel and what I think of him. I think either folding or calling here 100% is wrong.

I probably fold since there's no reason to think you're folding the river if you're calling the flop with the cards that came.

Quote:

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Originally Posted by IowaSkinsFan

I probably fold since there's no reason to think you're folding the river if you're calling the flop with the cards that came.

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No but I bet the flop, I didnt call.

Imo it's close so whether you call or fold, probably not a very big EV difference either way.