Guys, There is a manager that I am working that keeps copying my actions at work?

There is a manager that I am working with & I have noticed that he keeps copying me. He keeps logging in at work when I do & logging off at the same. Now he keeps copying my calendar so if I am away so is he; if I’m on annual leave so is he for the exact same dates. Colleagues will start to wonder so I am wondering why he is making it so obvious!

Can you please advise why he is doing this?
Guys, There is a manager that I am working that keeps copying my actions at work?
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