What do i do i didnt do nothing to them?

ok so at school there are 5 -7 poeple who hate me and idk know why i dont even know them. they just hate me for no reason. like they found something abut me they dont like or something idk. but i dont want them to hate me it makes me feel upset. bc what if they will tell there friends to hate me and so on and i dont want anyone else to hate me. how do i make them like me? i would change what it is they dont like about me but i dont know what they hate about me. sometimes i see them whiser and i think its about me bc they look in my direction and whisper like i definitly have a sure feeling its about. what do i do? there the rude mean people who think there all that type. i also really want to solve this bc there friends with my firends and i dont want to feel left out like how come they accept my friends and other poeple who i never expected them to like or hangout with and not me? what did i do? and what do you do when u see someone talking about u? how do yu know if they are like signs?