Aah dude, I see where you are coming from and heres a few pointers which hopefully should get you far with her. As a PUA you should always remember Peacocking - a feature which will make you stand out amongst her everyday people who she serves. This is merely to grab her attention which may lead her to ask about you or why you are wearing that silly hat or glasses. Chances are, being shy as you have described her, she wont say a thing. So here are conversation starters
1. Just say "you look terrible (this is a Neg), have you been working long or are you being overworked?".. regardless of her answer yes or no.. just say you look like you could use a break! hopefully she should say.. I could use a break indeed or I go on a break in 30mins or whatever.. you can close with either asking what time she goes on a break if she doesnt volunteer this information, or if she does then asking do you mind If I join you on your break.. I could use a break and some nice conversation for once and not the nagging of my boss.
2. Use what you can see on her to start a conversation. It only has to be small short conversation to make her think.. or I want the conversation to continue. So for example, If she has a badge with her name on it just ask "your name wouldnt happen to be [insert her name] would it".. Hopefully she'll say.. you noticed the badge.. which will enable you to say something along the lines of "do you always volunteer your name to strangers?" in a jokingly/teasing tone. You'll make her smile. Follow it up with "I volunteer my name to strangers all the time too, Hi [insert her name] my name is [insert your name]. This should ease the "I am serving only tension" mode most people at the till put across. Just before you leave or whilst packing the stuff she is barcoding through to you just start telling her something i.e. did you hear about the shop keeper in Ohio who had his name stolen because he used to have it on his badge?.. then just turn around and say oh thanks I'll tell you it another time. Hopefully you can come up with a more plausible story which will intrigue her. Then walk away without finishing it. go back another time and say I'd like to finish that story over lunch or if she asks you to finish it (demonstrating value), say its quite long, are you free for lunch?..
Good luck buddy!
Observations are the key. improvisation is the lock. Add wit and charm for a smooth finish
