I wouldn't even notice. Since whenever that happens I take absolutely no notice of it, my sister অথবা mother tell me that that was what they were doing.
Taking note of how fearless he is of approaching যেভাবে খুশী females on the street, I'd assume he was used to it. Therefore, he must have better girls to কনভার্স with. If not, I'd still be pretty confused cause I'm definitely not someone a guy would approach and start hitting on xD I'd be like, Who আপনি talkin' to? Me? Oh. Then I'd somehow manage to make the face: ._____. awkwardly. And be like, "Aweh shucks আপনি HomoSapien, I like your face too!" Then tell him he's a gentleman and walk away. o-o