In general to do the sign that means "me" or "I" you
just point at
yourself or touch your index finger to your chest.
Often the concept of "I" or "me" is expressed by the beginning or
ending location of the sign. Thus you often do not need a separate
sign for "I" or "me."
You can learn
American Sign Language (ASL) online at American Sign Language University ™
ASL resources by Lifeprint.com © Dr. William Vicars