Man up.
Yes you are being a pussy and you know it otherwise you wouldn't of made a thread:
viewtopic.php?f=6&t=192004
This one time, I asked a girl cashier out and I could sense she was into it. I figured I couldn't just get the number from her whilst people were behind me, so I went away and wrote down my number and told her: 'Hey, you dropped this

' and she smiled and sent me a text a few days later and she almost became my girlfriend.
Since you're a regular there, why not just start off small by asking her how her day is before giving her the item? That way you will develop some a little bond and she will recognise you next time which by then you will get your name exchanged and so on until the point you can ask her out.
Inefficient if you ask me incase she has a boyfriend and you have wasted weeks and weeks of money pretending to buy groceries so much to find that out.
To me, it sounds like you haven't swallowed the pill with this pick up stuff, you have just joined because you really want to get with this one chick. It doesn't work like that, you need to put in the reps in and be rejected 100's of times before you're able to pick and choose girls like that.