One night, on my way out of subway station, I noticed a relatively ordinary looking girl, really ordinary, short, flat nose, but out of nowhere I feel a desire to approach her, asking for her number. Noteworthy is I've done some approaching lately and outcome is not bad, maybe I was trying to test if I'd made some progress in approaching skills. Anyway I was pretty confident with that one.

But the result is totally catastrophic. After I told her my intention, she just kept walking without having set eyes on me. But I heard her murmuring something like, "How come you'd asking for number from a person you don't even know", which suddenly make me feel myself being viewed as a minority or some abnormal person, which sucks. and my mood was pulling down to the point where I just wanna go home ASAP and lie down on my bed.

All in all, this ordinary looking girl nearly single handed destroy my confidence and determination in approaching. Any advice would be much appreciated.