I think you'll find that it's just life, regardless of what race, colour or creed people are. Some will acknowledge you, engage in conversation with you and others will ignore you.
As I'm a smoker, i always have to smoke outside of buildings, if there's another smoker there I'll always try to spark up a conversation with them, some will be quite chatty and others wont want to talk to me....it's no loss to me if they wont chat back![]()