I rarely play live since I don't have the roll for it and 1/2 PL is the lowest game offered around here.. it's either this or 5/10 PL lol ... anyway.. I am just wondering how much different is live cash vs. online.. I played already both here and abroad.. In Vienna, it was 1/2 NL and I did fairly goot there.. so, to the hand..

We are shorthanded.. 5 players..
straddled ... I had [Kd] in BB.. and after SB completes I Pot it. Only SB calls.

flop [5h][9d] .. SB checks and I check.. I did this because I wanted some kind of a pot control with that ace since he might have ATC when he called my raise and he could have that ace as well.. he is normally very loose, rather bad player, although he improved from being a total fish (i railbirded few times so i know) to a more observant player..

Pot $36 .. Turn .. He bets $20.. I call..

Pot $76 .. River .. He bets $40.. I call thinking that he doesn't have the A but rather something like TJ,TQ or KT figuring that he noticed I didn't bet the ace on flop after my PFR.. still, I don't raise cause of the ace.. also.. Have I had AK in this hand, he would call me to river with A3o probably..

What should I do differently?

You played this hand perfectly.