When will I have the number of reputation over my name ?

As soon as you get over 100 posts and have at least 100 ratings. So tell your friends to always rate your responses.

When you reach 100 posts thats when they start to give you star ratings and then when someone posts on your discussions and rate you it increases your rating..I think i got my 9 star rating on my second day when i reached 100+posts and i had a lot of responses from my friends..It always depends on the quality of posts you make.

Dear xiayifeng, as you have 7 number reputation star it means you have 73/100 to make 9th number reputation star you need to have atleast 86/100 and for that you'r friends have to rate you +ve. Ask your friend to rate you positive therefore you may able to have number 9 star just beyond your name. As far I know I always rate you positive =) And I even raised my reputation from number 8 to number 9 and Im looking for more =) Thank you so much for such a lovely discussion!