From my own personal experience this is a bad idea.
I tried doing so, and we ended up being ,,best friends'' chances to hold the attraction means to be constant (happy nice face every time you go SPAM) , but then she will come to talk to you only because she needs YOU to entertain her.
This is possible if:
1) You both plan on being with each other in few weeks/months/years
2) One-itis is never good, since fantasizing and living your life are two opposite sides of the dice
3) Stay cool, talk to her, be her friend, give her compliment, ask her silly questions and build some attraction but only thing i beg you is : Lower your expectations AS MUCH as possible, or you can hurt yourself really bad for no reason...
p.s: This is my opinion, hope it helps a little, personally one-itis was good for me for the first few weeks when i was extra fast, energetic trying make this girl love me, but after those weeks i went so deep into misery (I think that is a universal rule)
Love yourself and your emotions and lower expectations, that will do it
