She could always ask if she wanted, though depending on mood or topic, Nebula might not answer.
After clinking bottles, Nebula took a long swig. She didn't know if she could get drunk, but she wasn't yet. A loud burst drew her attention back to the night sky. Multiple colours blossomed with in tendrils that eventually faded, replaced by the next bang.
"It is a celebration," she said. "I didn't think of this as bragging, though it is Stark's party." She didn't say that as a critique, just that Ironman's alter ego did have a, well, healthy ego.