H - A - L - E - Y
Here's how you would do that:
* H: The sign for "H" is made by holding your dominant hand in a "5" handshape, with your palm facing out, and moving it slightly forward and then back.
* A: The sign for "A" is made by holding your dominant hand in a "A" handshape (index finger and thumb forming a circle, other fingers extended) and moving it slightly forward and then back.
* L: The sign for "L" is made by holding your dominant hand in an "L" handshape (thumb and index finger forming a "L", other fingers closed) and moving it slightly forward and then back.
* E: The sign for "E" is made by holding your dominant hand in an "E" handshape (thumb and index finger forming an "E", other fingers extended) and moving it slightly forward and then back.
* Y: The sign for "Y" is made by holding your dominant hand in a "Y" handshape (index and middle fingers extended, thumb touching the base of the index finger, other fingers closed) and moving it slightly forward and then back.
Remember to sign each letter clearly and distinctly, and you can add a facial expression to emphasize the name.