My Fishter

Islam says treat people good regardless of how they are with you, do not say I shall behave in such and such a way and be nice only if similar treatment is given to you- Laa! Rather you treat them as you would like to be treated and if they dont give you the same respect and treatment then may Allah (swt) guide them. Ameen.

And about the greeting thing, just think of it this way, you get more reward for being the first to initiate Salaaam....Ooooh Masha'Allah, lol