Getting started / temporary compost

What's a good way to get started with composting? We're on a new property that's mostly wooded. Our building is temporary (Camper) while we level the land and get the basement in. We grill outside and have a decent amount of food scraps and charcoal ash, but no lawn clippings. We can throw in dead leaves, sticks, coffee grounds and such. I wouldn't be looking for anything permanent until we got the hang of things. Can you just heap things into a pile and stir them from time to time?