Why with P.s.'s

Why is it that when we're around certain people we can be ourself.
And then when we're around others we have to hind ourself like the sun in the night.
Why can we talk to some people.
And talk "about" others.
Why do some people have friends.
While others have "no one".
P.S. Be who you really are around everyone.Because everyone else is taking.
P.S.Never talk about people because it can come and bite u in the butt.
P.S.Even be there for people you
dont know.Because then you'll
always have a shoulder to lean
on.