How am I supposed to know if she likes me back now?

[Mixed Martial Arts The 2nd]

On facebook theres this application "Who Likes Me" and I clicked yes on my friend/next-door neighbor (whose a girl) and I have her password so I went on her account and now I know that she saw that I clicked YES on her. I kinda think she likes me but I dont know. Was this a stupid thing to do? How am I supposed to know how she takes it.. I will see her at school tomorrow, shes in my class. Any ideas?
I dunno why she wouldnt im popular and cute, im not sexy but im cute..

[Gina]

yikes! well, can't do anything now but wait and see how she is around you tomorrow!
if you try to talk to her or anything, you might be able to gage if she is interested or not.

[Summer ♥]

you'll know how she takes it.
if its awkward and she tries to avoid you than she doesnt like you back.

[Saad]

act normal like u never clicked yes. jus talk to her bout normal stuff
not a stupid thing to do
she mite like u bac and if u dont act normal u will never kno

[~Lisa~]

first of all dont go on her facebook. and yeah she probably is thinking about it and considering how she feels about you.

[Chaosmage9]

She might take it in the wrong way and avoid you. If that happens, just tell her you were messing around. Good luck.

[ratlesnake]

She will think you probably don't know how to use a computer....
And if she doesn't, then there's your excuse.......