ZEGH8578 wrote:
heres a plan:
get there early, preferably before opening hours, that way shell know your really into her
then stay the whole time, grab any oportunity to chat w her and stuff, such as when she walks past you.
when shes finished, follow her out to the parting lot or bus station*, and give her a little note w your phone number coded into a poem, then return the next day and hit that thang!
*if shes on her way home on foot, follow her and when shes about to stop in front of an entrance, hurry and pass her the note!

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This sounds like a good way to get a harassment or stalking charge against you. Following her home, very bad idea. Showing up before opening hours, that would likely make you seem desperate, and creepy. Though maybe this has worked for ZEGH8578, I'd be curious of the results of this action plan if he's actually tried it.
Bataar, unless there's a specific girl that you actually like that happens to be a waitress don't go after waitresses. They're so used to being hit on and flirted with that you'll just be another faceless customer in a crowd. Don't try to pick up these girls where they work. Find a social event, some place where they're not trying to make a living.