Handshape: Both hands are in a relaxed flat hand shape.. By "relaxed" I mean the fingers can be together, or they can be loosely separated. The hands are not "rigidly" flat, but have a very slight curve. The thumbs are open a little bit, but certainly not "extended."
Location: Out in front of you, about belly height.
Orientation: palms facing up
Movement: Each hand moves in a small circle. They don't go up and down. They both move forward, then out to the side, then back toward the body, then in towards each other.
Non-Manual Marker (Facial expressions and or body language):
You can also indicate here by pointing at the floor, raising your hands an inch then lowing them an inch.
This works with one hand. It means the same thing, it is just not as emphatic.
The pointing version of HERE is more of a "right here" or "this very place."
It is also used with the sign come to mean "come here."
It is also used as a common single-sign response to "where" questions. "Here."
The flat hand version is a sign that means "this location" in general.