Here's a possible scenario: It is your first day back at the office and you are feeling excited after three months of working from home. At the office lift lobby, you see a bunch of people, some your colleagues and many whom you don't know.
You reach your floor and use your office tag to open the office door. Two people who rode in the same lift follow behind you into the office. One, a colleague, turns left with you as you head towards your desk. The other, a stranger you assume is a new employee, takes a right.
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