How can I tell if this girl likes me?

[bobby b]

Alright, here's what my examples are:
-She changed my twitter name to Joseph Koney and got #StopWillie trending( my name is Willie)
-When my teacher moved me away from my friends in class, she always called me over to her before class
-She would spray some weird perfume stuff on me.
-She seems to be able to tell me anything.
-She does the I'm gonna be mean to you thing.

---Extra details----
-I'm about 175 and 5'7" , so I'm overweight, and she's one of the pretty girls at my school.

[R B]

Don't ask her if she likes you.

Tell her you like her and see how she reacts.
Think up something witty and funny.

Regardless of where this goes, lose the extra weight as it hurts your confidence.