How to Sign "Tu"
To sign "tu", you simply fingerspell the letters "T" and "U". Start by forming the letter "T" by making a fist with your palm facing forward and tucking your thumb under your index finger. Then, smoothly transition to the letter "U" by extending your index and middle fingers straight up, keeping them pressed tightly together. Your thumb should rest across your curled ring and pinky fingers. Keep your hand steady and in one place as you switch between the two letters.