Nothing - be proud and happy as she obviously looks up to you and appreciates you - there is nothing wrong with that and she is your friend.
There is something wrong with that. It is called Plagiarism. You should ask her to stop and tell her she won't be able to copy anyone in the exams so you think that she should do her own work because you don't want to her her fail.
If she is copying you when it comes to dressing, hair styles and other things simply ask her to stop. Tell her you want your own style and that you think she should get one too. If she falls out with you over it then it was never a very strong friendship to begin with.
Tell them how great they are.
You should say why did you copy me and then just ignore them!
Instead of giving her your work show her how to do it. This will help her and solve your problem.
dump him
run scandisk and disk defragmenter, try copying less files at once.
If your friend keeps blowing you off, I think that you should confront him/her about his/her behaviour in a cool, calm way. My advice would be to talk to your friend calmly and ask why they blew you off. They might have a very good explanation!
a parrot
Well, frankly I don't think your friend is good friend if he is trying to take your girl. Maybe you should find another friend who will respect you.
Calmly remind him of the fact she is already with someone, and ask him to stop.
If this is schoolwork then it is not copying, but cheating. Whether it is schoolwork or something you have done on your own it is wrong for someone to copy your work and it should be your individual work and no one else. Tell your friend no!
Well first of all, you should make sure they are actually doing what you think they're doing, it may just be a coincidence. If you are sure you should feel flattered but if it really bothers you, you should just tell them gently that it is bothering you, but try not to make it seem like your accuse them of copying you.
To stop copying you, at home just ignore it or do normal things that are not attracting to the person copying and keep with the act throughout the day. If on tests or homework, one can fill in or write down the wrong answer then when the friend is not looking, change the answer to the correct one.... works every time.