what does it mean when someone said? how is Mike,Is he behaving himself?

It means that Mike sometimes does not behave as well as might be expected. The person asking wants to know if Mike has been being good.

To get a definitive answer on how Mike is behaving, you would need to ask someone who has firsthand knowledge of his behavior. Start by asking the person who made the statement about Mike. They may have observed Mike's behavior firsthand or have received information from others.

Alternatively, reach out to individuals who interact with Mike regularly, such as friends, family members, or coworkers. They might be able to provide insight into his behavior.

Another option is to observe Mike's behavior yourself. If you have regular interactions with him, pay attention to how he behaves and make your own judgment. However, keep in mind that behavior can vary depending on the context and situation.

Lastly, if you still haven't gotten a clear answer, consider reaching out to Mike directly and ask him about his behavior. This approach allows you to gather information straight from the source. However, keep in mind that individuals may not always provide an objective assessment of their behavior.