Reflection on Differences

How do I treat people from different cultures? I that them the same until they have quite afew different friends then I leave them to play with their other friends.
How are people from different cutures the same? They are people, they speak a type of language, they play with people and they can write and read.
How can we make new people fel wolcome? We can throw a welcome party for the person that is start during the school year not at the start of the year.
What might I have done to make this person feel different? I don't let them play with me when I/we are playing a game that he/she wants to play, called them names, siad mean things to people.