If visits to a friend's home are few and far between, arrive with a small token like a bottle of wine or homemade baked goods. Make it more personal by bringing their favourites!
For dinner parties, don't just sit around and wait for the food to be ready, lend a hand! Set the table, help with the dressing or simply usher in other guests to the dining hall. Make sure to do the same post meal too!
Just because it is not your house party doesn't mean you can't help out with facilitating the night! Keep other guests entertained with conversation and make sure everyone keeps to the agenda if there is one.
As a guest from out of town and staying with a friend or family, treat them to a nice meal on your first night's stay to show your appreciation! Alternatively, you can make them a nice breakfast with groceries you bought yourself.
If you are staying overnight, the least you could do in the morning before you leave is to make sure the bed is made regardless of whether they are going to wash the linens after or not.
If visits to a friend's home are few and far between, arrive with a small token like a bottle of wine or homemade baked goods. Make it more personal by bringing their favourites!