A Miley is someone who mostly cares about appearance, can be annoying and sarcastic sometimes, hates losing and hates people they find is annoying. Although this may be true, they care about people they think is close to them and maybe stay with you for as long as they can. They can be attached to you fast but if you're talking bad about them or making them feel left out it will hurt them a bit or a lot but they would get over it after a while if you give them some attention or friendly affection. They are mostly short but fun to hang around sometimes, can be very funny and is probably smarter than you think. They may have an innocent look to them but they can tell dirty jokes and passionate about their hobbies, but even though they have all these nice traits they may be TERRIBLE in understanding feelings and awkward with romance, so I don't think they are the people u should go spill your emotions to. Although they may act immature sometimes they can be serious when they are alone doing work, since they can also be busy with their social life and their own work. Though I can guarantee that they absolutely HATE when u compare or call them Miley Cyrus since they have heard that almost their entire life and find it extremely annoying.
Of course this isn't how every Miley is like since they have their own unique characteristics.
Teacher: That is correct Miley! I think you're very smart.
Friend: Hey Miley, let's hangout!
Miley: Aw~ did you miss me! I missed u too since I haven't seen u in an hour :(
Some guy: Is that Miley Cyrus!?
Miley: Hahaha you're so funny.