Tony squatted down a little away from Eleven so he was neither towering over her or too near her. He was letting her take the lead. It was up to her what she wanted to share. The most important thing, for Tony, was getting her someplace warm and safe.
"I need the suit," he agreed.
He then watched her levitate the rock. "Thanks for showing me," he said. "I won't tell anyone unless you want me to, okay? And you don't have to use powers if you don't want to."