Perhaps give advice about the sentence structure. Yes, you don't want to be a snob, but you want to have the best RPers you can for your RP. He does seem to be new at PC, but that doesn't mean you can't help him out and give him advice. Maybe tell him about his sentence structure and give him hints as to how to make them better? Either that, or wait for another (better) SU. I think two more people held interest in the RP, although I could be wrong.