Do u bite your nail quite often?

For me ,that's a really really bad habit...
but I found so many people just do the same...
I don't know the exact reason(maybe lack of some calcic stuff or sth else),the normal rule is when I...

Do u always make plans?

I found it hard to accomplish the plans I made...(bad self-control really).
so right now,I seldom make some big plans,just do the small things step by step.
so how about u guy?
and do u have some...

one world,one dream

Do u konw something about 2008 Olympic Games in Beijing,China?
and the slogan "one world,one dream"?
also the mascot called "fuwa"?

if u are the person who has the right to decide what the...