One didn't grow up best friends with a Flash and not learn the gift of gab. It helped that it came quite naturally to him. It also helped to pester Damian into doing things just to make him shut up. Bonus. Though, truly, wasn't that supposed to be the little brother's job and not his? Damian--ever the miniature adult while he was Bruce's big kid.
Unfortunately for Damian, they still had coms. So Dick kept talking.
"By the way, good job stepping up and helping to plan the day. It's nice of you."