These are people who do not wear masks. I believe that if you really want to show your true feelings, then you go out and look like how you feel.
You feeling happy because of something/someone? Go show it! Show that person that you're happy!
You feeling sad because someone hurt you? Go show it! Be true to yourself!
You feeling angry about something? Don't keep the anger inside, that's bad for the health.
Anyway, I guess the point I'm trying to drive at is that I believe most of us don't want to show these feelings because we're afraid to get judged. Some of us may fear rejection while some may feel that they'd hurt someone.
I think the people who should know how you feel should be given that.
So here I am being honest, right now, I'm feeling really happy -)