1. Rather often , because I look in the mirror when : I am washing teeth or hands , I am going  out , I am taking care of my hair , I am making up (as I'm not adult , I do it in "special" days) , I am trying new clothes etc.

2. As I have a mirrror in my bathroom , I can't. 

yeah i can manage without look face in mirror becouse i use my webcam to look my face daily;)

I don't often look in mirrors in purpose but somehow I see myself in the mirror. 

: )) I don't have a mirror in my room. Why do I need a mirror?

I'd rather not watch the inevitable ageing process.  However, looking in the mirror everyday is unavoidable.  Sometimes I do it without my glasses and then it is a lovely fuzzy picture I see!