Dual Personalities

My personalities depends with who I'm with. And actually, I don't know either it is my personality or attitude ?

When I'm with my family, I'm a lil bit matured, lil bit childish, a lil bit quiet and a little bit appropriate.

But when I'm with my group of friends, I tend to be childish, loud, annoying and inappropriate.

And a fact about me : I don't mix my personal life with my life when I'm with my friends. It is just the way I am from primary school.

In conclusion, 

My personality : I adapt to the people surrounding me

My attitude : I may be loud & harsh if you are my friend and I'm comfortable with you. I'm extremely quiet if I'm not comfortable. But with family, my attitude differs. It's unpredictable :)