Liberty hand gesture- raised hand L sign

[FreedomPete]

Hunger games has a scene where the liberty starved population uses a hand gesture to support katniss. That got me thinking.. Does the Liberty movement have a widely used hand gesture?
I have seen a website where the sign language L sign raised overhead was used as a liberty gesture.

I think it would be helpful if at statist political speeches or during any public event, liberty activists could use a raised hand gesture (not the middle finger) to display disagreement, expose others there to liberty principles, and help liberty minded people to identify each other. Not everyone is willing or capable of engaging in civil disobedience that results in arrest.
Unfortunately some may mistakenly believe it is a gun sign, and some violent persons may intend it that way.
Anyone have any experience using this sign?  Hassled ?? accusations it was a gun or gang sign?
Any suggestions or comments?