If the harasser tries to make you promise to keep the harassment a secret. If the harasser is an adult. If the harassment happens when you are alone with the person. If you are being physically threatened or hurt. If you are being touched by the harasser.
Some people feel like they can t do anything, like they are a captive audience.
There are, however, some things that you can do to help. Don t do or say anything that will encourage the harasser. Don t giggle, stare at the person being harassed, add more jokes or gossip about what happened. These actions will probably make the situation worse because they make the harasser feel like you approve of their behavior. Friends can be very helpful.