The person who seems composed may have chosen one public hour to hold things together.

Composure in public is often a performance funded by everything that happened before it. Someone can spend the morning barely upright and still walk into a room at two o’clock looking steady, because that hour was the one they decided to spend their reserves on. What you see is not the average of their day; it is the best minute they could construct.

If you know someone is going through something, check in on a day when nothing is scheduled. Ask how the rest of it is going rather than how they are holding up. Offer something specific and small.