A dependable person creates calm without announcing it.

Groups take their emotional temperature from whoever is steadiest. A dependable person lowers everyone’s background anxiety simply by being there and doing what they said, without any speech about staying calm. The effect is real and almost entirely unspoken.

If you want to help a tense situation, start by being unmistakably reliable in your own part of it. Calm spreads more effectively through behaviour than through reassurance.