Not knowing me

People called me smart
but haven't seen my grades
people say i am not lazy
but doesn't know what i do everyday
people say i am not useless
but we rarely hang out
people say i am nice
but only see me when i am nice
people say i am not annoying
but only say that to be nice
so how could they know
if i am smart or not
if i am lazy or not
if i am useless or not
or if i am nice or not
that's the thing
they don't know
they don't know at all