I.e. you "buddy up"
No I do not, speaking when spoken to is courtesy, trying to drop names, gives discount on meals, going out of your way to engage in conversation etc.. that is sucking up. Pretending to support poice when they are standing around and condemning them when they are not is sucking up.
I never solicited to nor understood the "us versus them" mentality some offiers have when I worked ( just lukcy I guess I did not socialize that much away from work ), after reading some stuff here I fully understand.