why this girl laughs at me in bible study?

ok is not that i feel insecure about it i never looked at myself down when she laughs at me every time i ask questions.

sometimes in bible study i ask questions well a bit more than everyone else since they don't even ask questions at all but when the priest says "any questions" i always rise my hand and some times my questions are funny and make people laugh on purpose . i like to make people laugh and laugh with me. but some people i feel they try so hard to laugh at me but not with me no matter how much i try to make them laugh at the joke.

when ever i speak even if it's not funny she start laughing and whispering to her guy friends for some reason and they look at me. i don't even know her. i just want to know if she has insecurity or something like this. it really doesn't bother me what she thinks of me but i want to know what is her problem why she acts like this.

i feel like she judges me so hard and i have never given her something she can judge me on. i never done something that makes me look less than others. i am very confident guy in myself. and also the guys were kind of complaining like "here's another question" when i asked a question to the priest. and the priest never minds he always answers my question. he tells stories and i tell similar stories too like some guys there. but i am the only one she laughs at for some reason. and is not the nice one but the one where she is mocking me and whispering to her friends.