Jem and Briar
Tattoos? Jem had as many or more tattoos than Briar did, and when he shook his hand they were obvious on his wrist, disappearing up under his sleeve. He wouldn't think anyone was strange for having tattoos. It was part of a Shadowhunter's life.
"It's nice to meet you," he said sincerely.
"I find that meeting people in this place is harder than I would have thought."