Roy often skips Boy Scout meetings to hang out with Kori and Jason (Don’t tell Ollie)
Kyle Rayner is usually hanging with the Troublemakers but had a cold on this particular day and Hal wouldn’t let him leave the house.
Cass is wearing Bruce’s old costume (here) that she found in the attic while playing hide and seek with her brothers. Alfred has since made a few alterations to it, of course.
That stuffed cat looking thing behind Damian was made by Dick. Alfred has been teaching him how to sew and he practices by making tons of plush for his siblings! (They’re finally starting to look like actual animals)
If Alfred has to call the Justice League or any of the teenage teams, he puts on one of those cheep plastic batman masks and does nothing else different. They call him the Bat-ler when he does that. Although one time Dick called him Grand Bat without thinking of it. Alfred hugged him when he came home next.