KK on paired board

[DWarrior]

Party Poker No-Limit Hold'em, $ BB (10 handed) pokerhand.org hand converter

MP1 ($48)
MP2 ($50.80)
MP3 ($75.90)
CO ($79.55)
Button ($30.60)
Hero ($51.25)
BB ($49.50)
UTG ($48.50)
UTG+1 ($48)
UTG+2 ($46)

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img]. Hero posts a blind of $0.25.
<font color="#666666">7 folds</font>, Button calls $0.50, <font color="#CC3333">Hero (poster) raises to $2.75</font>, <font color="#666666">1 fold</font>, Button calls $2.50.

Flop: ($6.50) T[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $4</font>, <font color="#CC3333">Button raises to $8</font>, Hero calls $4.

Turn: ($22.50) 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Hero calls $19.60.
<font color="green">(I almost folded here, pitting him on a Jack, but then I remembered all the donks who did the same thing and showed me something retarded)</font>

River: ($42.10) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

Final Pot: $42.10
<font color="green">He shows KTo, 2-pair and I take the pot</font>


I always thought the emphasis was to try and read my opponents, but I'm finding out more and more that most people at $50NL are unreadable. Yesterday I had AA on a suited flop, and a guy ended up calling me down with KTo (top pair) and hitting his T for 2-pair.

Should I just play my premium hands and accept outdraws as losses, or should I try to read my opponents and accept stupid bluffs/overplays as losses?