How do you approach someone you think you may like but you've never actually talked to them before without it being weird or awkward?

guys love to give advice. so if you want to talk to a guy you like but don't know how to start out, just ask his advice. but you have to be yourself because if he does fall for you and you weren't being yourself he didn't actually fall for you. he fell for the person you were pretending to be. but i dont get how that answers the question i mean shes never met him before it would make scince if shes met him before and u wanna take the next step but how do u approach one uv NEVER MET.