hmm, i will feel taken for granted if that happens. but i guess
its doing a good deed la.
usually i smile then nod to them, then give up my seat, usually
they'd thank me wan leh.
if they did thank me, i'd feel warm and fuzzy inside, if they nv
thank me, then i will sian lor hahahhaa. 
but sometimes oso depend my mood and situation. like if the bus is
really really really packed. and i see an old man board the bus.
he's at the door, i'm at the first seat, its very hard to give up
my seat since he have to squeeze in all the way, and i was really
exhausted and was sleeping in the bus. so never give up my seat
lor.
