Good man. The cleaners at my dorm in college were the same. Seemed genuinely grateful to pause and chat when I'd ask about their day. After that I'd chat when I met them in the hall.
That's what it's all about right there. You could lean into your lizard brain and learn to see every other being as something that will either eat you or not eat you, reacting accordingly with emotion, or you could lean into your rational brain and learn to connect with anyone, to be involved in mankind.
No man is an island,
Entire of itself.
Each is a piece of the continent,
A part of the main.
If a clod be washed away by the sea,
Europe is the less.
As well as if a promontory were.
As well as if a manor of thine own
Or of thine friend's were.
Each man's death diminishes me,
For I am involved in mankind.
Therefore, send not to know
For whom the bell tolls,
It tolls for thee.