first, i am new to those seduction, eye-contact etc. things and trying to implent those to my life.

today i was on escalator, with a very pretty female friend, and there was a girl with headphones behind me. actually i was turned to my friend so this girl was on left of me, not behind. we had eye contact for a moment, then i talked to my friend, then i again looked at her and catched her she was looking at me. with the confidence of being with a beatiful girl, i kept eye contact. it lasted like 4-5 seconds, then she made some mimics like "what???" i was shocked and made mimics like "nothing" then she said "ok".

i could not feel creepier. i still have confidence problems over my appearance(face, a bit overwightness etc.)

what do you think, does this happen? have you ever experienced a thing like this? is it probably because of my expression or physique or just about her?