1. "S" handshape: Start with your dominant hand in the "S" handshape (pinky and thumb extended, other fingers curled).
2. "Sing" motion: Move the "S" handshape in a circular motion in front of your mouth, as if you were mimicking the act of singing.
3. Facial expression: A smile or a happy expression is usually used to accompany this sign.
Important Note: The direction of the circular motion can vary depending on context. For example, you might move the sign up and down if you're talking about singing a high note, or side to side if you're talking about singing a melody.
Let me know if you'd like to know how to sign other words!