DH and I are having a cookout at our house this weekend for the holiday. We are doing just your normal burgers, hot dogs, salads etc. But the more I think about it the more I think we should some how acknowledge my dad and DH's dad for their service in the Vietnam War- that is the point of the holiday after all. Both dads will be at the cookout. I don't want to hang banners that say "Thank You!", but I also don't want the day to pass by and not let them know we ARE thankful for what they did for our country. Any ideas on how to pay tribute without making it awkward or too forward?