You should tell him that you've noticed this and ask why he's been copying you and depending on his answer you should try to make him feel better about his old self so that he can develop more in specific areas.
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.
You can't stop people from copying your cloths on poptropica I thunk
STOP COPYING ME DUDE!
Do not let them see your work.
No
''please stop copying/following me."
you tell him or her to stop because you don't feel okay with it.
they have a special counterfeitind machine.
A guy tells a guy to stop flirting with her. Or is it him?
σταμάτα να αντιγράφεις (stamata na antigrafis).
no awnser allowed to this one :D stop copying your HW from internet
To say "stop copying me" in Spanish, you would say "Deja de copiarme." The phrase "Deja de" translates to "stop" or "quit," while "copiarme" means "copying me." This phrase can be used informally among peers or in a playful manner.