You can still try to find out what causes their behavior (by showing interests into their perspective) and may be able to help them and therefore the team.

- If they have a different perspective, it should be helpful to listen to their perspective.

- If they have a bad day, it will go away.

- If they have family or health problems, you might not want know the details, but simply knowing that a person is going through a difficult time might give you enough information to know how to improve the situation.

Even if you are not the cause of the situation, you might still be able to improve it as a manager.