What is a fun childish thing you still do as an adult?
For me, it's sticking my hand out of the window of a moving car. Whether I'm driving or not, I love having the windows down and waving my hand in the wind. I've loved it since I was a child and I'll never stop doing it!
You should add in toe touches, everyone should be able to touch their toes without bending at the knees. I recommend bending you're knees, touch your toes, straighten your knees out till you feel the stretch, hold for a few seconds, do like 10 times.