I think a couple of previous posters are making an issue about what is wrong with going after a guy. Nothing is wrong with it really, just doesn't apply to this situation. If he does not call he is not interested, there's the answer!

Why would you call and question that? I can't possibly imagine him not calling being any clearer of a sign.

Just keep in touch call him or text him but I bet his phone is off or something

If he hasn't called by Thursday, give him a call. He may be busy, as it is Fathers Day, so pass the remote and root beer.