A person who never admits confusion eventually teaches others to doubt their certainty.

Refusing to admit confusion produces the opposite of what it intends. If someone is never puzzled, never unsure, never in need of a moment, people conclude that they cannot tell the difference between understanding and not, and they start discounting the confident statements too. Admitted confusion is what makes claimed clarity credible.

Say that you do not follow something, in a meeting, out loud, this week. It costs less than it feels like it will, and it usually turns out that several people needed the same clarification. It also makes your next confident statement mean something.