Think about your funniest friend. That friend that makes you laugh almost every time you see them. Now think about WHY that person is funny.
Is it his laugh, or her facial expressions, or the way he does impressions, or the way she comes up with hilarious sarcastic comments. Why is that person so funny? They are entertaining to talk to, to watch, to listen to. In a sense, that person is on stage each time you see them. They've gotten good at acting. They're the only actor in their own private play, and when you see them, you're the audience.
Think about how many times you are asked by your parents "How was your day?" Most people just give a one word answer: "Good." What if you decided to entertain your parents for that moment? What if that question came up, and you took it as your cue to perform?
You are always on stage. When you talk to your friends, your family, your class- you're always on stage. But we don't realize it enough.
We watch TV because it's entertaining. Actors entertain us all the time. People can be funny, interesting, captivating...even thrilling. Take your chance to entertain more, because what you gain in return is confidence.
Use your acting skills to entertain.
Look at your audience. Use facial expressions and voice inflection. Use your arms and body to tell a story. Entertain them.
You're always on stage.