Go to the recital nobody else from the team bothered with. Showing up where it’s quiet says the most.

Attendance at the big occasion is crowded and costs nothing in particular. Turning up at the small one, where the room is half empty and nobody would have noticed your absence, carries information the packed event cannot. It tells the person you were interested in them rather than in the event.

Find out what the people around you do outside the thing you share, and go to one of those. Sit through it properly and say one specific thing afterwards. You will learn something about them that never comes up in the usual setting.