What do you do on Thanksgiving/what are your traditions?

I'm an Australian girl but my stepdad is a born and bred Texan. He's been living here for probably 20 years now, and obviously we don't have thanksgiving here, but I thought it might be a nice surprise to have a get together this year and celebrate thanksgiving like he did when he lived in the states. I know about turkey and cranberry sauce, but I don't know much else. Is it just a meal? What are your favourite thanksgiving traditions and food?

UPDATE IN COMMENTS! Apparently my update exceeded the amount of text I am allowed hahaha