Of course... I talk to people who aren't black and aren't white, but most of time revolves around my black family members and friends.. I hope I kind of answered your question.
Uh, yes. I got along with pretty much everyone when I was in High School, lol and College is even more diverse with not only different races, but with different nationalities. Why are you asking?
How can one possibly stay within your race always in countries such as the US, Canada, the UK, Ireland, Germany etc. without physically trying which is kind of pathetic.