CBBC wants everybody to say Bye Bye to Bullying - and Newsround has made a special programme about how to be a great friend.
During Anti-Bullying Week, you told us that one of the best ways to help with bullying is to be a better friend.
We spoke to the world's top experts in childhood friendship at the University of London - and to kids all around the UK.
We've used this advice to bring you a story about an alien that comes to Earth in search of a best friend.
This programme was first shown on 20 November 2014 at 5.55pm on CBBC.