
Imagine you’re in elementary school again, playing the “warmer/colder” game – you know, the one where a friend chooses an item in the room and tells you “warmer” when you’re getting close, and “colder” when you are going the wrong way. Now, imagine every time you get “warmer”, your friend gives you an M&M. It’s not a huge reward, but it’s motivating, tasty, and the game is fun in and of itself. You are more and more excited to try […]