Here we are looking at input events with the micro:bit focusing on the A and B buttons and the motion events. Understanding how these can be used to trigger events is the start of being able to write programs that don't just run when the micro:bit has power but when you want event to trigger giving much more control.
Programming suggestions
1. create a program that can show your mood depending on what button is pressed
2. Create a series of basic answer to questions
3. Create a simple rock, paper, scissors game using the A, B and A+B buttons