We are finishing up a major project right now. At the last zoom meeting the business lead excitedly suggested that we should all get together in real life once it is totally completed for a celebration. All of us engineers slacked each other and said that we had less than zero interest in this and wondered how we could tell the business person thanks, but no thanks. I've been in the industry for 20 years and I still don't understand the desire of business people to go get a beer together or go eat together or whatever. I do have friends I'd like to do those things with, but that is not you. Please don't make this awkward.