What is traditional for each person to give before starting a feast For thanksgiving?

Oh, dude, before you stuff your face with turkey and mashed potatoes, it's like tradition for each person to say what they're thankful for. Yeah, yeah, I know, it's all sentimental and stuff, but hey, it's a small price to pay for a feast, am I right? So, like, just take a moment between bites to show some gratitude and then dig in!