If you know sign language, should you use it with friends who also know it, or no?

If you know sign language, should you use it with friends who also know it, or no?

You should read this… I know how I feel about it. Knowing people have taken the time to learn the language, or were taught from childhood, is a good thing. It shouldn’t matter that a person who isn’t deaf, is communicating with another, through sign language.