It could be as basic as sending a print or something more elaborate. A few of the things I have done for examples have been: washed dishes and clothes, cooked meals, contributed to the food, helped with children, skinned animals, carried extra loads, help make repairs on things, given rides, built fires, hosted people in my home for many months and many times just the act of listening. All of these things have existed as part of my storytelling/portrait taking process.