I would off course call a small bet on the river, but half my stack seems too much when I'm pretty sure I'm beat. I play these hands better if I have a read. With no read I get too careful. Have to work on my confidence in these situations. I find it a bit confusing with the typical advice that if someone bet on the river and you only hold a pair, your probably beat. It's not really true that often!?

Later the same evening some guy tried almost the same thing against my AA. But I had a read on him as a fish that would chase and bluff if he didn't catch. So after some thinking I called his all in on the river to
win 75$. I find myself making more and more notes on players to know how to play them and it's really worth it!