I work with a person who is as same position as me but is 30 years older. I saw him being fancy with other colleagues on his second day.
He somehow knows less but talks more. He has been acting smart and asked me what I learned today that I didn't know yesterday. This would be fine coming from an old mate but I m a new person. Even I didn't get so cheeky with my colleague so fast.
How do I deal with people like this so they know to stay professional and that I am not that approachable or quick to open up?
While a part of induction included what I would be telling him, he pointed out to me something like he knew more than me, but of course he didn't.