The Happy Place
Cason has a happy place: it's bouncing. If you're holding him, you'd better be ready because he will wriggle his way in your arms until he's standing up and jumping in your lap. Burping him often feels like wrestling an alligator.
Cannon also has a happy place: it's placing with trucks and cars and trains and boats. I found these little cars and people in a box in my parents attic (yes, they are from my childhood DECADES ago) and he's LOVED them.