There are a set of free 1 day workshops that walk you through developing a cross platform mobile app for iOS, Android, and Windows using .NET/Visual Studio with Xamarin. These workshops are around the globe. During the course of the day you develop your own cloud based app to run on all 3 platforms.
I will be attending the one in Raleigh, NC on October first.
If you are an aspiring developer or new to programming this is an excellent opportunity for a day of hands on learning with a real working example to walk away with.
You have to program to be a programmer!