He should show his friends what he likes about his dancing competitions and invite them to come cheer him on. If they continue being mean to him and teasing him/ making fun of him he should try one more time then go find some new friends and not make a big scene/ give in to their pettiness. Also, it depends on whether or not they are just joking around or bullying and saying it to be mean.
A. Working out in the morning is more effective...
1. Food and Drug Administration
