Shino Aburame is a calm, collected, and solitary person, who is quite mysterious. He is portrayed as being somewhere between merely stoic and matter-of-fact, rarely ever smiling or showing emotion at all; rather than thank his team-mates for congratulating him on his victory in the preliminaries, he told them that he expected them to do the same (both Kiba and Hinata lost their matches). He also has a tendency of holding grudges and being rather intimidating, such as seen when Naruto failed to recognize him at the start of Part II, but easily recognized Kiba and Hinata. He still holds that grudge to this day. Shino seems to be aware of these odd personality traits; in the anime, when he ate food poisoned with a chemical that forced him to laugh, he menacingly told Naruto to forget it had ever happened. His interest in bugs only helps him strengthen this viewpoint; by spending most of his spare time watching bugs, and often making analogies to bugs when talking, people have come to identify Shino as "creepy", and tend to dislike being in his company for prolonged periods of time.
Despite occasionally arguing with Kiba, Shino has a very strong sense of connection with his team-mates and allies, first seen when he regretted being unavailable and therefore unable to help with retrieving Sasuke Uchiha. From that point onwards, he resolved to work on his teamwork skills with Kiba and Hinata. He even helped Hinata to improve her abilities, and is one of the few people, besides Naruto, who openly professes confidence in her. The fruits of his efforts are seen in the anime, where Shino was able to carry out a mission successfully while also keeping others safe. He also proves to be able to understand his team-mates' inner workings, sensing when the slightest of things is wrong with either of them.
Shino speaks in a curious fashion, as noted by both Naruto and Kiba: a rudimentary explanation of his syntax is that he will ask a question before explaining a point, where as most people will leave the question unspoken. Also, he tends to restate facts in a more technically correct fashion.
In the anime, it was shown that Shino will panic when confronted with insectivorous animals or plants. He will also fall into despair to the point where he almost cries and even refuses to continue his mission to avoid losing any more insects.Shino has dark bushy brown hair, pale skin, and was the tallest ninja of his graduating class. Shino is regularly seen sporting the same style as the rest of his clan, consisting of dark sunglasses and a sea-green jacket with a high, upturned collar. During Part II, his appearance became even more mysterious, with his jacket hanging down to his knees and the addition of a hood that obstructs his face even more and a satchel on his back. This current appearance makes it harder for people like Naruto to recognize him right away. During the Fourth Shinobi World War, he wears a flack jacket under his jacket.