This was the specific question:
I am interested in getting guidance on how to handle the relationship with a person I have to see ( and work with) daily. I am not sure if I can be very nice or just polite. I am afraid to be too nice because this may look like I am flirting but when I am polite, I feel I am not being warm, approachable enough. Sometimes it feels like my personality is to blunt or not polite for him.
So the question is: What does he think about me?