Should I tell him?

There’s this guy I like and my friend is friends with him. He put this guy snap in my phone now I got his snap. When I snap him he snaps back fast. When I added him he added me really fast as well. The same friend ask me everyday if I snap this guy back. When I say no he said why not you should snap him. Should I tell the guy that I like him even though I never talked to him in real life?
Should I tell him?
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