Do not be afraid to make a scene if necessary to protect yourself. Attend large parties with friends you can trust. Try to leave with a group, rather than alone or with someone you don't know very well. Reduce your consumption of alcohol. Keep in mind, if a person is drunk or unable to give consent, having sex with that individual is rape.
Rape Try to remain calm.
Consider your options and how safe it would be to resist your attacker. Depending on your situation, you may have no option for active resistance. But if you do, act quickly. Try yelling, fleeing, biting or kicking to gain a chance to escape. Be realistic about your self-defense ability in order to prevent increased injury to yourself.