There are a couple of different ways to sign "area."
If you mean "area" as in that locale or "in that area," "around
there," "thereabouts," -- then use the version of "area" that uses a
"5"-handshape and moves in a horizontal circle.
There is another sign for AREA that I really think you should know
about. It is based on the "PLACE" sign.
What you do is you form your hands into "A"-handshapes. Then you
hold them out in front of you and trace a horizontal circle. I move from front to back. But some people move from back to front.
You can learn
American Sign Language (ASL) online at American Sign Language University ™
ASL resources by Lifeprint.com © Dr. William Vicars