Happy Up is like a little treasure chest of things that make you happy. They can be big things or little things, events or people or animals.
If it makes you happy, write about it in Happy Up. Then, whenever you need some cheer, open your treasure chest and track which happies got you smiling. :)
Simple as that. Happy Up helps you store up happies so you remember what gets you up when youre feeling down. The more you smile at stuff, the more it sticks around in your treasure chest and the stronger your happy becomes.