The Gratitude Campaign

Longtime friend Joe Repp emailed a link to this site today and it seems like a good idea to me.
The point of the Gratitude Campaign is using a reasonably universally understandable American Sign Language gesture to say "thank you" to military, police and fire personnel for their service.
Here's the explanation of the gesture:
This sign originated in France in the late 1700s, and was published in “Theorie des Signes”, a dictionary of signs by the Abbe Sicard. The sign was brought to the United States in 1816 by the Rev. Thomas Hopkins Gallaudet, founder of Gallaudet University, who later modified it to start at the chin rather than at the heart. That sign is now the standard sign for “thank you” in American Sign Language. The original sign, starting at the heart, is less commonly known today and might now be considered “slang.”
You can see a short video about it here.
I think the old "thumbs up" works just as well - maybe better - but that's just a matter of personal preference.
And it's not about politics, it's about service.