What should I expect as a white British girl at a cookout?

Me and my husband moved to America around 3 months ago. It's been really hard but we've made some amazing friends who's help us so much out if the kindest of there heart.

Me and husband work together but in different departments are colleagues have become like a second family to us. Most are colleagues are black, I'm used to working with black people and I had plenty of black friends back home but I've never been invited to a cookout I think that's mainly a American thing.

My husband is really into BBQ and American cooking style. Back home he had a smoker and he had loads of cookbooks on it. He got talking to another colleagues about it and they've invited us to a cookout.

Apparently it's polite to bring a plate and I was thinking of doing some pigs in blankets but besides that I have no idea what to expect

What should I expect as a white British girl at a cookout?
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