Advice on talking to these people please?

[Anna]

Okay so, in our geography class today, we were put into groups to make a poster. In my class I have a few good friends but none of them were in my group. Im in my gcse year and this will be my second year at this school. there was no one from my high school in my geography class so i always feel out of it but i am good friends with the ones who sit around me. Anyways we were in our groups and one girl decided to write all our names on the top of the sheet. She wrote everyones name bar mine and kept whispering loudly "this is so awkward, lol what do i do? Omw awkward ahaha" ... I didnt know what to do and another girl said "its rihanna, isnt it?" So basically after two years of going to the school she pretended to not know me even though she has me as a friend on facebook and ive been in her class all this time. I know i am shy in my geography class but with my friends im really not and after feeling so embarrassed because they all laughed at me I just couldnt speak. We are going back into these groups and we are doing a presentation to the class and im sick of being the girl who doesnt speak... I know its stupid but i really need help.

[punyMastermind532]

Just forget about the bad memory and move on. She won't eat you! Remember that!

Big deal. Just be confident and respect yourself.