Help translating a sign

[Matej Dolinar]

Hi!

Can anyone please translate this sign for me? I do not know ASL and I would like to know the meaning of the sign in the picture 

Thank you!  

[Laika.Lai]

For beginners it could mean "be quiet". 

[Lysandor]

We really need some context on this.  Is this from a video?  What was the topic being discussed?  Where on the body was this sing used?  This is too out of context to really analyze.