Is this a bluff often enough to call

[Kondzik]

1.25 raise pf, and i think id check the turn. u put a lot of money into this hand, and had only second pair on the flop, and pretty nothing on the turn.. i dont like to play like that, cause ull have plenty of other, better spots to put money into.
u beat only fl draw at this river, but this river check showed huge weakness, so might also induce a bluff. I think it depends on your read. if u say that hes not playing crazy agressive, than i think he wont have fl very often, cause he has no implied on the river. but still.. im not sure ;]