uugh i know your pain! i go to an all girls school and absoultely hate it (im transfering next year tho!!
)anyway find a cute guy if he hasnt found you yet and start talking,get to know each other, and after a little ask if he wants to dance. Grab his hand and have him follow you into the crowd.Then position yourself and start dancing.Thats when the grinding starts
If your too shy to do that then just get to know a group of guys and before you know it they will ask you themselves.If you get a group of guys then i know for sure more than one will ask you to dance.
Hope i helped
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Diamond guide-Diamond buying guide