What kind of snapchats to send to not be annoying and flirt without sending the wrong message?

this guy and I kissed a few times at the end of the semester so we knew not to start a relationship. he's doing a study abroad program in Europe right now and I'm home. we added each other on snapchat to keep in touch when he's abroad. what kind of stuff should I snapchat him? I don't want to be annoying and also not give the wrong idea (aka no nudity because I actually like him and would prefer to try a relationship if anything rather than just hooking up when the semester starts up) but being flirty would be good. he also hasn't snapchatted me yet and I would like him to send snapchats of Europe from time to time so how should I go about reminding him via snapchat?