I'd like to get a few girls numbers and just get to know them and go on some dates. etc. Like for example I saw this girl at this burger joint this evening and she was so cute, but by the time I decided what I wanted to get and everything I already had someone behind me so I didn't bother. There are opportunities all the time, but it just seems so difficult to chat them up and then actually get their number without interfering with their job and holding people up etc. I guess what I'm asking here is what are some good flirting tips for situations like this? I even saw a cute girl working at the gas station a couple days ago.