How do I say I miss him without being clingy?

Anonymous
okay the guy I like is out of town, and I kind of miss him. we didn't have the chance to hang out b4 he left to go to Philly. and he has a phone that doesn't work outside of our state. so I can't contact him that way. he gets on once in awhile on aim. I just want to tell him that I kind of miss but I don't want to sound clingy by saying that I miss him?
How do I say I miss him without being clingy?
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