How do I ask a coworker for her number?

Sorry this is long. I had to go to a different store for a week for training for deli work Day One: I meat this girl, at first I thought she was a bi*ch till I found out she doesn’t know how to train. Then she lightened up after a while

Day Two: See her again and this time she is a lil more opened up and acts like her self I take it and I can’t find my self thinking about her out of no where…

Day Three: Was bored with hearing the same thing from the trainer for 3 days now… and all I could really think about was her… and believe it or not the way she acted… well after like what felt forever she shows up! Now I feel all happy in side but I’m telling my self “Be cool”

Day four: Now it gets messed up… at the start I’m all happy that I get to see her today… and the manager is off today so everyone is laid back… till a different store calls and says the need someone to fill in cause on of there stores didn’t have anyone so the other trainer had to go… now I’m stuck there with people that have no clue on how to train. and I can’t think straight so I’m messing up peoples orders. I go to the store manager to ask if I have to come back to learn what I didn’t that day and she was like “THERES NO ONE BACK THERE TEACHING YOU?!” I was like no she had to go to a different store. I turn my head and look back and she speed walking over to the deli and I’, like “Oh sht!” and next thing she back there talking to them and I feel like an as…I didn’t mean for it to go that way but I apologize to her and the other one. then we started to act all cool with each till I had to go home.

Day five: Last day here… all night before I couldn’t get to sleep for a while because I trying to think of a way to ask her for her number but I’m someone that thinks everything comes off as being a stalker so everything sounded to over bored… then I just thought I’d ask her when we didn’t have any customers and we were in the back while she was showing me something… well it gets messed up i show up and I’m like “Hey whats up everyone?!” I was more opened with them then I am with my friends that I have known for 7+ years but any who I start working and she not there yet so like a hour later she shows up (note: we are suppose to work from 2 to 9 so in my head I i have 7 hours to try to get her number) and not even a hour later we get another call from the same store the day before saying the other called in sick and they need her to cover… (note: no one knows i like her but my friends and brothers) well I’m helping customers and next think I hear is “OK I”m going guys” I knew I only had like 30mins before she left when she got the call… but if I didn’t help them I would of got fired… so I’m watching her walk away and the only thing I’m thinking is “RUN AFTER HER U TARD! FU*KING RUN AFTER HER NOWWW!!!” and I can fell my body jerking to run my legs were tighting up but I wasn’t able to move… then I a customer got in my view and I started to help them… I was bummed because she was going to be over there till close and we were going to be gone by then, so the whole night I’m going slow trying to hide that I miss her but I think they could tell something was up cause I keep splashing stuff in my eyes and doing stuff wrong… and got home and felt kind of sick and wasn’t able to get into any games or anything I’m use to doing it’s like she all I think about…

Even now I start up my game and just sit here…thinking “should i go back and ask her for her number?” “Would it come off as being a stalker?” “How should I ask her?” “Should I tell her I like her?” “Should I use lines?” all these thoughts r running through my head over and over and as soon as I get a answer I find something wrong with it and the main thing is that I don’t have a way up there I was taking the bus these whole week and only have the money to get there and back till last night. If I had the money I would be there in a heart beat! If anything I just want to get to know her… it’s just something I like about her… I can’t put it to words but it’s there… in the way she acts and the way she moves and just who she is… So if anyone has any advice please feel free to shear it!