SKYPE for Business - Status for specific person

Hi, I would like to ask you this:

In company we use Skype for Business. One colleague add me into the favorites - I suppose that based on the added contact in NEW section. But I dont want him to know whether I am online/away/offline..... Is there a way to stop him to spy on me? I dont want to block him, I just dont want him to know my current status.

Thank you.

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