Give honest feedback. Sometimes it hurts to give honest feedback because you don’t want to. Be direct and truthful.
Take ownership, especially if its a negative thing. Take that ownership and talk about how you can improve it. People will respect you more.
Set a direction. If the team is unsure on a direction, help set that direction by sharing your feedback and ideas.
Resolve conflicts. If you see conflicts, be a force to help resolve those conflicts and move the ship forward.
Inspire others. Everyone is different, learn their quirks and try to inspire them to do great things.