These are some solutions to racism:

1.People should celebrate festivals of other races
2.Residents' committee can organise events which helps to create strong bonds between neighbours of different races, to promote the idea of living together as a multi- rational.
3.We should learn to appreciate other races like eating other races's food,Costumes etc.
4. Be mindful in our daily usuage of language.
5.Be sensitive towards other races and do not make rude comments on other races' ethics or cultures.
6.Exchange knowledge with your friends about their culture. This will help to promote awareness about other cultures.
7. Respect your friends' race/religion practices.

(Note : Instead of people you should address by using group terms like ... e.g School should hold events or celebrate to promote friendship within races, like international friendship day)