Top pair, weak kicker, OOP

[Boolean]

First orbit, so no reads unfortunately. I'd like to know what to do about this sort of situation, what is the default play, etc. My feeling for the table is that it's somewhat passive, but aggressive with strong made hands.

PokerStars 0.25/0.50 Hold'em (9 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is UTG+1 with A/images/graemlins/spade.gif, 4/images/graemlins/spade.gif.
<font color="#666666">1 fold</font>, Hero calls, MP1 calls, MP2 calls, <font color="#666666">1 fold</font>, CO calls, <font color="#666666">1 fold</font>, SB completes, BB checks.

Is this a good limp? I have a nice suited ace on a table that may be passive..not very much raising preflop. I call and hope a lot of people call behind me to bloat the pot when I hit my flush draw.

Flop: (6 SB) A/images/graemlins/heart.gif, K/images/graemlins/heart.gif, 6/images/graemlins/club.gif <font color="#0000FF">(6 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, MP1 calls, MP2 calls, CO calls, SB calls, BB folds.

Here's where I'm not sure. With 3 players left to act, should I bet this? If I check, it can check through and I'm not sure if I want that.

Turn: (5.50 BB) 3/images/graemlins/diamond.gif <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, MP1 calls, MP2 folds, CO folds, SB calls.

No aggression, bet again for value.

River: (8.50 BB) 9/images/graemlins/spade.gif <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, MP1 calls, SB folds.

No aggression, bet again for value.

Final Pot: 10.50 BB

[irishpint]

with no reads on the table i think you can fold A4s UTG. However you have to bet every street here, including the river, since you were shown no aggression.

[gopnik]

looks fine, a better A probably would have raised you.
A lot of K hands will call you down if the table loose.

[SoftcoreRevolt]

I play it the same, even without reads I'm not playing at a table where I can't play Axs.

[silkyslim]

I play it the same, at that limit you can safely limp suited aces in EP.