@antnf8900 Mine does too! I've started using it as a tool to keep him happy during dinner. We put him in his bouncer, sit on floor poufs in front of him, and take really animated bites of our food. He laughs and laughs.
@robaya We don't change anything, but make a concerted effort in getting some extra activity in during the afternoon and evening so he's tired for the first week or so.