"i don't know" ASL

[lipskidder]

Anyone know how to sign "i don't know" in American Sign Language? I looked in up in several places but can't find that phrase.

[dmann]

Isn't it the sign for "know" and then moving your hand down (palm down) and out (like the sign for bad)?

It isn't in my dictionary and my memory is rusty.

DM

[mattkime]

a blank stare does it for most people.

[wurm]

[quote mattkime]a blank stare does it for most people.
Or at least a shrug of the shoulders.

[The UnDoug]

Doug
Male
Philadelphia

[Blurb]

Seriously, the sign is holding both your hands up (palms up, elbows bent, hands about at mid-chest level) while you shrug your shoulders and slightly rotate your thumbs outward at the same time.

Many ASL signs are common sense, such as tapping your watch (or where a watch would normally be on your left forearm) with your right index finger means time; or patting your right hand lightly a few times on your right hip/thigh means dog (how many times do we all do that when we call our dogs?).