My sister is a very shy being. Her soul calm and her words nearly mute. She is not one to communicate on the spot; very subtle in nature. She sees it as no problem, eventually she'll learn to be communicative. You can sense her silence through her body language as it is timid and nerve wrecking. 

  She will hide, if necessary, to avoid contact. She is not an open individual as I may be. I don't really see her acquiring such trait from mother or father. It is strange to see what behaviors she has taught herself as it contradicts to teach yourself.

   Once you begin to understand her, though, she is a very cheerful soul, always wanting to keep an open and loving vibe. Beautiful how one can hold so much back but then burst into gay colors.