First I'm typing this on my phone sorry for grammar/spelling if it happens.

So I was at the grocery store with one of my female friends, and I seen this HB8 walking around we made eye contact and both smiled then carried on, eventually my friend and I got to the checkout line, and the same girl came up to the same line even though the other lines were shorter. So I thought this to be an in, so I mustered up some courage and asked her how her day was going and she told me while constantly smiling and the conversation was going good but I was running out of things that came to mind to talk about and I started panicking thinking about what all the other people thought I was doing flirting with this girl in a public place. We stopped talking for about 20 seconds when I noticed a DVD (the grey) that was filmed in my home town so I brought it up and we talked about that as she unloaded her items onto the counter, I knew time was running out because my friend was finishing paying and as I looked at my friend she made her hand into a phone suggesting I get her number because as she explained later it seemed like she was into me. But I froze again I couldn't think straight I have read lines about asking for numbers but I hustled blanked so I said nice meeting you and walked away.

Bah humbug, I need help. What can I do to improve my self confidence or learn how to not think about how others are viewing me, because I figure if I could get that out of my head I could probably have saved that and gone through with a number close.

Any suggestions?

Ps : first [FR] let me know if I should have added anything.