A girl I've seen at the Market!!! What's next?

[Remberme20007]

I went to the Market few times, and I've seen her working behind the register (3 to 5 times maybe) but I never showed her any intereset because I simply never felt interested, Until the last time when I went to pay for my items and she was the one behind the counter. Suddenly I felt as if i have feelings for her, she could probably see that on my face, I could tell she may likes me because she starts playing with her hair. I couldn't say anything other than "hi" and "you too" ( after she said" have a nice day!!!" ) with a smile on her face. So I did a little research on her family name(name was on the tag of her shirt) and luckly I found her profile on facebook, I added her but she still didn't confirm yet, but we had a pretty nice one hour conversation through about 12 messages I would say which ended up with her saying "good talking to you too, later". The messages were like none of us know anything or ever seen the other. However it's not true because we could see each other profile pictures (complicated to explain!!!), none of us asked "who are you". It just went as if I am the one who's investigating her how she found my profile and than she tried to prove and convince me that I am the one who added her!!! So what's next? should I send her more messages? Should i go see her in the store where she works? I was thinking of buying some flowers and other personal stuff for myself from the same store she is working at and after I pay for it, I tell her that the flowers are for you. Would I look like creepy? stalker? bad idea? (her relationship status is single).