About sign language, unless the other person we’re speaking too understands this language, I don’t think they will understand us.
Instead of that, I prefer to use hand gestures to be more passionate. When using hand gestures, I actually focus on my hand movements, and that helps me a lot.
About what you said about memories, Adam, I try to visualize myself speaking flawlessly in various situations, and that helps a lot. For example, if I’m about to make a phone call, I try to visualize myself speaking the way I just said in that inminent situation, and I must say it is really helpful.
Actually lots of atheletes do this before a competition.