When I meet people at first, I usually feel awkward and hostility = hostile.
So many people think I'm strict and unfriendly.
Be = But when they get  close to me, of course they forget such a misunderstanding about my personality.
Most of my friends say to = tell me, my first impression = their first impression of me  is terrible.
I try to change that, but I am shame = ashamed to show my real personality to stranger.
When I become a university student, I have to make an effort to change my personality, so I try to smile at other people.
I really want to change my character. :)