MAN STOP ASKING THE SAME QUESTIONS I TOLD YOU WHAT TO DO...DO IT
IF YOU CANT DO THAT BUT WHAT YOU CAN DO IS...PULL ASIDE AND JUST LOOK DEEP IN HER EYES AND TELL HER YOU LIKE HER AND YOU WANT TO TAKE HER OUT..IF SHE REJECTS YOU MOVE ON IT ANT THE END OF THE WORLD
Easier said than done dude.
Start with hi.
Ask her about items in the shop.
ask her if they have any cocaine like whisper it to her like you heard they do. play the joke out a little bit then hopefully she thinks it's funny and the next time you walk in that store ask her same chit and smile, then you can ask her chit about if she likes her job...what she do why she work there you think of something.
A nice, sweet complement is always welcome by a girl. Start with "Nice smile"
Just ask her about stuff in the shop and try to get a wider conversation going.