Notice who keeps getting interrupted in meetings. Then make space for them to finish.

Interruption follows a pattern, and the same few people get talked over in most rooms, which means the group is not actually hearing from everybody. Whoever is cut off usually stops trying rather than pushing back. A few words from somebody else fixes it instantly, and nobody has to be told off. Access to the conversation is the thing quietly being handed out.

Watch one meeting this week purely for who gets cut off. When it happens, say you would like to hear the end of what they were saying. Then stop talking and let them finish.