Writer's Block: Friends and acquaintences
A friend is someone with whom you have spent time getting to know each other. An acquaintance is a person you know in passing or have only talked with a little bit. An acquaintance becomes a friend after you express an interest in them and vice versa, and then you get to know each other. I don't know if there is a certain amount of time. It is when you feel comfortable with them and know them in their own words.