This is something that everyone should do! Everyone in the military needs to know that we really do appreciate them for what they do.
This is really simple, beautiful and extremely worthwhile. Check it out. I have said thank you to men and women of the military while at the airport and the experience is always really meaningful if not a bit uncomfortable for them. I don’t think there’s a social protocol yet for saying ‘thank you’ and this really nails it. I hope this catches on.