Who are you today? Tomorrow?

How do you define yourself?  

How would others define you?

If they aren't matching, you aren't being honest with either with yourself, or them. 

If you are authentically you, your values, beliefs, actions will match whether you are at home or in the public eye. Your schools of thought and opinions should not change whether you are in the company of one or a couple dozen. You should not have to remember what you said just to keep your story straight. If you are honest, you don't have to worry about keeping up with yourself.

People's opinions can evolve and change yes, but not from person to person, from day to day. The process comes about from enlightenment or something that personally affected them forcing them to change their platform.  Once you have a belief, you usually hold onto for years, often forever. I would be suspect of anyone that changed their feelings, values, or morals like they change their socks.  

Having said that, if you are two(or three, or four) people among many you should ask yourself why. It usually can be found within those little crevices within your brain that you don't like to journey to.  

Truth be Told: Be you. With all your idiosyncrasies, faults, and quirks. We like you better that way anyway.  Please don't go being what you think is the accepted well-liked norm.  Your opinion and idea of what that is will probably be wrong anyway!