Should I leave him alone?

So I recently met this guy on a dating app. The day that I gave him my number he automatically FaceTime me and asked me if it was ok to pick me up and take me out which I declined because I just met him. Then the next day he went the whole day without saying anything but automatically FaceTime me around 5 PM. I don’t know if that how guys operate now or he’s just trying to get into my pants.
Should I leave him alone?
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