NL50 How to play 2nd pair

[bigoliver]

Problem at this hand is that it should be obv what I have. I guess he has a weak A. But knowing that, shouldn't I reraise flop to try to get him off it? No reads so far.

Party Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker HH Converter (http://www.legopoker.com/hh))

SB: $34.97
BB: $51.90
UTG: $21.75
<font color="black">Hero (MP): $51.45</font>
CO: $47.50
BTN: $30.52

<font color="black">Preflop:</font> Hero is dealt J/images/graemlins/diamond.gif K/images/graemlins/club.gif (6 Players)
UTG folds, <font color="red">Hero raises to $1.75</font>, 2 folds, SB calls $1.50, BB folds

<font color="black">Flop:</font> ($4) 8/images/graemlins/diamond.gif J/images/graemlins/spade.gif A/images/graemlins/club.gif (2 Players)
<font color="red">SB bets $0.50</font>, Hero calls $0.50

<font color="black">Turn:</font> ($5) J/images/graemlins/club.gif (2 Players)
<font color="red">SB bets $0.50</font>, <font color="red">Hero raises to $4.75</font>, SB calls $4.25

<font color="black">River:</font> ($14.50) 3/images/graemlins/diamond.gif (2 Players)
<font color="red">SB bets $0.50</font>, <font color="red">Hero raises to $11.50</font>, SB folds

Pot Size: $26.50

[Bramsterdam]

I'll usually muck pre-flop. Threat villains min donk bet as a check and C-bet $3. Turn is fine. I usually make it $10 on the river, but that's no big deal.

[CobraGoat]

fairly standard.

i might have bet a hair less on river. villain is obvs terrible so dont make his decision to fold quite so easy.