During a critical phase of the project, you observe that one of your key team members appears unusually quiet and withdrawn during meetings whereas normally he is actively engaged. Based on your understanding of emotional intelligence, what should be your immediate next step to effectively address this change in behavior?
Discuss the team member's behavior openly in the next team meeting to seek collective feedback.
Immediately reassign some of the team member's tasks to others to ease potential workload stress.
Wait until the team member speaks up about any issues on his own in the meetings.
Have a private conversation with the team member to discuss any concerns.