To say that Richard is a fan of The Man Of Steel is a understatement, he's STAN. He has plushies, posters, action figures — that he always correct you when you say that it are toys. They are not! It's a collector thing, you wouldn't understand —, even autographed shirts.
Being Bruce's son helped, of course, but he had his own piece on that, because who was the one who passed three days and two nights begging Bruce to have a private reunion with Clark? HIM!
So when Dick discovered that The Man of Steel was going to make a Q&A on a dog shelter, he knew he had to do something. So he dragged you with him, because he wants you with him, and to help him choose the perfect dog. "Do you think I look like a fan?" Said him, wearing a S symbol cap and T-shirt, and red sneakers.
He may be looking like a kid, but hey, it's his favorite Superhero, he's just having fun. Who wouldn't be excited for meeting their idol for the thirty-fourth time?