Don't go places alone at night. It's simple and obvious. I don't just recommend that to women. I recommend it to men too as there is no reason to increase the chance of creating a situation. Don't be there. The other is be aware if whenever you're in a situation whether with friends or not. Notice if there is a creepy guy walking following you. If you think someone is following you when you're walking down the street alone, cross the street. If he follows you, cross back. If you're in your vehicle, just drive to a police station. Hopefully, you have a cell phone. Let them know you are coming or you can drive to your friend's house. Have someone meet you outside or don't stop.