Give me confidence, please?

I'm a pretty confident person, you'll know this if you know me, or have spoken to me before. But if you're a complete stranger and approach me, I'll turn to jelly. Unless it's part of your job obviously, but I fail at talking to strangers of the female sex, so much. I've only manage to talk to a complete stranger twice, which was in the same night, and I was smashed, dutch courage ftw. But yeah, today I did my gorilla leaflet thing, then had to waste a few hours before I had to do the casting thing for Orange, so I walked around London a little bit. Outside Hamleys there's these people on podiums that just interact with the general public and play around with toys and stuff, and this morning there was a girl in a pink dress, she looked like something from a Disney film, and as I was going toward it she pointed at me and said "You have cool hair!" so, like a bellend, I replied "You've got a lovely face", she just said "d'aww, thanks." it was left at that, until I came back out. Oh, I forgot to mention something, before all of this a woman handed me a origami flower wrapped in foil for charity, to which I coughed up 50p towards, haha, cheapskate. Yeah, continued: I left the building after about 2 minutes of walking around on the ground floor looking at toys and magic. I approached her and said "Oi, stranger." then gave her that flower thing, she replied "Ha, you're so sweet!". That was it, I didn't say anything else, but I planned to go back and ask her for her number after the casting thing. I went back, she was there, but there was a crowd and I didn't wanna interrupt. I'm shit at talking to gorgeous strangers anyway. I need confidence when talking to strangers.

I'll never forget the girl that I know as Hamleys Girl.