Correction does much, but encouragement does more.

Correction is easy to justify, since pointing at the error feels like the responsible thing to do. It does work: it stops the mistake, it sets a boundary, it makes the standard clear. What it does not do is give anyone the appetite to try the difficult thing again tomorrow. Encouragement is not softness, it is fuel, and fuel turns out to be the scarcer supply in most of the rooms you are in.

Think of one person you have corrected recently. Find the thing they did well that you noticed and never mentioned, and tell them this week, specifically enough that they know you were paying attention.