[Jason pauses as he tries to figure out his response. He doesn't want to get into the whole Red Hood topic already. It's messy and will cause drama that Jason's not in the mood for at the moment. This version of Dick only just got here]

Playing dress-up? Well over six years now.

[He's not counting most of the five-year period between his resurrection and his return to Gotham. Those were training years for the most part]