Somehow, and Some Day, I Will Learn..

So, a kinda wise guy, well my senior colleague at office, told me this noon,
DON'T BE TOO NAIVE..
yes, i got this sentence tons of time..
the thing is, i don't wanna be too naive too..
i always think i am mean and BAD person though..
but, well, in fact some people don't get it, instead they think i'm too naive..
and again i will just like "REALLY"??
hahahaha
have a very good lesson too from my senior colleague..
he said "someday, some time, you will learn, in this world, things are not just black and white.. mostly they are GRAY.. somehow too, you will find out and learn, GOOD PEOPLE do BAD THINGS, and BAD PEOPLE do GOOD THINGS.."
oh, oh..
and another thing..
he said to me, again like what my mom always said..
"When it comes to BOYS, MEN, you named it, don't be too available.. you have to play push and pull.. in simple word, play hard to get.."
LOL..
again, my mom, apparently totally RIGHT!