Dick grabbed Bruce's offered hand and shook it, wrapping the other around him in a hug. "I'm glad Alfred made me come out." Grayson said with a hint of amusement. "Of course not. Who else would I rather spend my birthday with than my family?" There was that grin again as Dick let Bruce go from his hug.
"I'm glad to see you here too. Did Alfred have to hide your keys?" Dick was teasing Bruce of course. He knew his mentor's zeal for his after hours work. It was a trait they both shared and Dick was acutely aware of how much Bruce wished to be out there fighting the good fight. Having him here though meant the world. "Thanks for coming. I really appreciate it."