[mce86]

It would depend on the amount of the river bet. If its just over half (12 or 13) i think a raise could take it away and if not, you'll definitely set up a check raise later in the game hopefully. You'll also see what he is willing to call the check raise with provided he doesnt fold.
A bigger bet, id likely fold. Good value bet, and id be excited to check to him when i have a real hand!