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When you wear your cosplay, chances are, you will get someone asking to take your picture. Rather than just standing there, consider striking an Itachi-like pose. This will help make you look even more like the character. Fighting stances are always great options, if you can hold them. Another option is to angle your body towards the camera slightly and mimic one of his hand seals. Itachi is a skilled, stern warrior, but he does not maintain eye contact with anyone unless he plans on interacting with them. If you really want to wow fellow cosplayers, you could try walking through the convention with purpose and determination, avoiding all eye contact. If you spot someone you want to talk to, try to get their attention by making eye contact before walking over to them. Itachi is cold, stern, and quiet. He does not talk much, nor does he show much emotion. Try to keep a straight face and your voice calm and level. If you do talk, keep your language smart and polished; this is a nod to the intelligent side of Itachi. Itachi is non-confrontational. If another cosplayer tries to initiate a play fight with you, try to avoid it or walk away (in character, of course!). A lot of anime characters have exaggerated personalities. That's what makes them so fun on screen. In real life, however, this can end up being really annoying (if the character is hyper) or downright hurtful (if the character is mean or violent). It is perfectly fine to play off of Itachi's coldness and seriousness, but don't take it so far to the point where you actually hurt others. Remember, there is a distinct line between real life and anime. Lots of people like to get into character when they cosplay. You will often see characters from the same anime interacting with each other at a convention. There is nothing wrong with this, and it can be lots of fun. Be aware that not everyone will want to play along with you. If you try to interact with another ''Naruto'' character and they don't respond, stop and move on. Don't force people to interact or role play with you. Look for body language. If someone looks or acts uneasy, leave them be. You don't have to become a black belt in martial arts, but they will help give you a better understanding of how to pose as him. Fighting styles to consider include: Judo, kickboxing, and boxing. Another benefit to martial arts is that they can help whip you into shape and unwind after a long, hard day. Cosplaying is for everyone, regardless of their gender, race, or body type. If you want to look just like the character, however, consider starting a workout regime to help build some lean muscle. How far in advance you do this depends on what your starting build is, and what your goal is. Don't push yourself, however. Remember, Itachi is an anime character, and his exactly weight/height/build won't be realistic or possible for everyone. You don't have to spend hours at the gym or starve yourself. In fact, this is not recommended at all. An easy way to get into shape is to maintain a healthy diet with lots of fruits, veggies, lean protein, and healthy grains. Do a few hours of light exercise, such as walking, weekly.
Watch the anime to get some ideas for poses. Learn Itachi's physical quirks and try to mimic them when walking around. Try mimicking Itachi's personality quirks when interacting with others. Focus on the good side of Itachi and tone down the bad. Know when it is and isn't appropriate to act like Itachi Uchiha. Consider learning martial arts to help you get more ideas for poses. Consider getting into shape.