PLEASE ANSWER!!. Would it be ok to add my crush on snapchat even though he didn't give me his username?

Nisa123
i really want to add my crush on snapchat as i know his username but he didn't give it to me, would it look creepy?, or if he asked could i say i found him on the new quick add update? Also we do know eachother and he does talk to me but what if he doesn't know its me and doesn't accept.. should i put a picture of me/put my surname in?
PLEASE ANSWER!!. Would it be ok to add my crush on snapchat even though he didn't give me his username?
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