Carl is the oddball and his Tongan etiquette will come out and start offering him water and food from our fridge in case they're hungry. They've all declined the food, but sometimes they'll accept the water. Ever since we moved we've had this 'free box' with things that DI wouldn't take (or want).
Examples: Brand new neon green shoelaces, a box of cake mix we weren't interested in, a large DFCU water bottle, strawberry daiquiri drink mixer, mini lotions I received but never used, a never worn green scarf from my 2013 Daphne Halloween costume, milk chocolate candy we had (I don't find chocolate to be worth the lactase pills if they aren't filled with caramel, peanut butter, etc.), and who knows what else.
Carl wants to ask them to go through the box and take anything they find interesting. I find this to be embarrassing. Thankfully, I've convinced him not to do that.
We've also been upgrading our furniture to prepare our nursery and many people have come by. He will also want to offer that free stuff to potential buyers. We had someone who bought our small dresser almost take our 4 foot Christmas tree! But his wife said no.
But when it comes to me and repairmen? I just sit on the couch surfing the Internet on my laptop. That way if they need to talk to me I'm available, but I can also just be an introvert and make minimal conversation if need be.