Just watch them beat him up.
Help you friend get up and run away
Help the people who are beating your friend up
Run off and tell a teacher..
Or help you friend and beat the bulies up
Start to walk a bit faster.
Turn around and ask them why they are following you. and if they dont answer you punch them all in the face..
Walk into a school or garden and wait till they go away.
Get your phone out and start to call all of your friends to come and beat them up.