Congratulations on receiving your new Brompton bicycle! Here are a few resources to get you started right away!
You can practice with the video and print this cheat sheet and tape it to your handlebars so you have a cheat sheet to reference for the first day or two on the road.
Your Brompton can be serviced at any local bike shop, the parts are not specialized. If you want to learn to work on it yourself we encourage you to watch the instruction videos produced by Brompton bicycle on their Brompton Technical Video page.