How witty they are in conversation. The good they do when they think no one is noticing
Occasionally I meet people who seem more interested in hearing about who theyre with, than talking about themselves. I impressed by this personality.
Intelligence, sense of humor, creativity, and a moderate sense of humility.
The size and type of hat they wear on a sunny day.
That last comment was just silly. My serious answer would be that I am impressed by the kind and/or generous things someone has done for someone else but never broadcast that act. When I was a Christian, I would say this was due to being so focused on Christ and what his purpose was for us versus what the world would say. The principal remains true...do nice things for other people because it is the right thing to do. Besides, it makes most people feel fulfillment when they do them. Just a thought....
Their level of composure in a difficult situation and level of compassion towards complete strangers.
Two of the above plus intellect. The two are kindness and integrity.
How unimpressed they are with how much money someone makes, the friends they have or title they carry.
Empathy and honesty. These things are so rare. A reason I'm still single.
I'm impressed with people who consistently treat others with kindness and respect. If that element is missing, it's likely I will avoid contact with that person as much as possible. Degrees? My two best friends both have masters degrees, and I stopped at a bachelors. The respect among the 3 of us is mutual and sincere. Money, except for the struggle our children have earning enough for basic expenses, doesn't get into our conversations very much. Yes, we are professionals who got through college before it became such a financially difficult process and have earned a living wage. We do, therefore, speak from a position of privilege.
The usual: kindness, respect, honest, hard working, honest and on and on. My add is that I especially respect those who seek the right answer, rather than seeking to be right. It is a rare mindset and leads to better outcomes.