A recipient is someone, like your child or friends, you create a video or call for. Each time you create a recipient they are saved in the My Recipients section, that you can find by clicking on your name at the top of the page, or the menu dropdown on the PNP mobile app.
All of the recipients you've made will show up when you create a new video or call, so you can pick any of them and use the information you've already filled out.