After you've established that you are talking about a couch, drop the first part of the sign. Or, if you are already talking about furnishings and your living room, you don't need the first part of the sign. You might also want to check out the sign for CHAIR.
couch:
Couch
animation
Note: In this animation I'm just showing the hands sliding apart. Start the sign by signing
"sit."
American Sign Language University ™ ASL resources by Lifeprint.com © Dr. William Vicars
