re: Poker & [5nl 6max] 10.5o (2pr), can I call river bet?
This is a fold. The "don't call big bets from bad players/calling stations" rule applies here. Not only that, but some other two pair combinations, straights, and backdoor diamonds got there (which, is actually worth considering). Not to mention that a set is possible.
If his AF was higher, we could *maybe* convince ourselves to call, but I think I fold this a large percentage of the time.
I'd like the flop bet to be a little bigger too (15-20c).