We all have chinks in our armour, meaning a soft spot or vulnerability that we don’t want to expose. Some people are strong and can internalize it so everything appears fine and others wear their emotions on their sleeves and you can read them as to what’s going on.
If you know of somebody who doesn’t seem like they’re on their game or appears off from what they normally are, take the time to ask them if they’re OK or if anything is going on that they want to talk about. Chances are they may not want to but they do know that you care and that is important. If they do want to talk, make sure to use those two ears to listen twice and speak once.