Valuebetting the lag (NL50)

PokerStars No-Limit Hold'em, $0.50 BB (7 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($36.60)
SB ($51.15)
BB ($75.55)
UTG ($54.45)
MP1 ($72.80)
Hero ($61.85)
CO ($46)

Preflop: Hero is MP2 with Ahttp://www.flopturnriver.com/phpBB2/...es/diamond.gif, Thttp://www.flopturnriver.com/phpBB2/...es/diamond.gif.
2 folds, Hero raises to $2, 3 folds, BB calls $1.50.

Flop: ($4.25) 2http://www.flopturnriver.com/phpBB2/...miles/club.gif, Jhttp://www.flopturnriver.com/phpBB2/...iles/spade.gif, 8http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
BB bets $1.5, Hero raises to $5.5, BB calls $4.

Turn: ($15.25) Ahttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
BB checks, Hero bets $10, BB calls $10.

River: ($35.25) Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
BB checks, Hero ???.

Final Pot: $ ?

My image might be somewhat aggressive since I raised a couple of hand the last orbits.
I have only 50 hands of the BB, but there he played 61/27 with 2.8 AF.
He is very loose and somewhat aggressive on flop and turn but folds to the river bet mostly.
I think he understands the style he playes, if you know what I mean. He has freaky stats, but he playes not really bad.

I wonder if I should valuebet the river. Comment the flopraise if you want.

A river bet seems fine here. The only hands we're really worried about are sets, AJ, and A8. I think he definitely calls a wider range than that.

Your flop raise is fine too. With the laggy way he plays, he can be betting a lot of hands he may well give up on the flop.