Think about it, you are made of elements and you are able to think. A book or pencil is made of elements yet it can't think.
Also I found out that in English Jinns are known as "Genies" (However they do not grant wishes as seen in western folktale.)
"In Islamic theology jinn are said to be creatures with free will, made from 'smokeless fire' by Allah in the same way humans were made of earth. According to the Qur'an, Djinn have free will, and Iblees used this freedom in front of Allah by refusing to bow to Adam when Allah told Iblees to do so. By disobeying Allah, he was thrown out of Paradise and called “Shaitan”. Djinn are frequently mentioned in the Qur'an, Sura 72 of the Qur'an (named Al-Jinn) is entirely about them. Another Sura (Al-Nas) mentions Djinn in the last verse. The Qur’an also mentions that Muhammad was sent as a prophet to both “humanity and the Djinn”.
Similar to humans, jinns have free will allowing them to follow any religion they choose. Jinns have significantly lower intelligence than humans but are physically stronger. They are usually invisible to humans and humans do not appear clear to them. However, non-Muslim jinn often harass and even possess humans (Muslim jinn are forbidden from doing so), for various reasons, such as infatuation (with a girl), revenge, or because of a deal made with a practitioner of black magic. Jinns have the power to travel large distances extremely quickly and live in remote areas, mountains, seas, trees, and the air, in their own communities. Like humans, jinns will also be judged on The Day of Judgment and will be sent to Heaven or Hell according to their deeds.[10] Since humans usually cannot see them and humans do not appear clear to them, the human "world" and that of the jinn is considered separate, and only practitioners of "black magic" contact them deliberately. Ibn Taymiyyah's Essay on the Jinn describes Jinn in detail.
Every person is assigned a special jinn to them, also called a qareen, the jinns that whisper into your soul and tell you to give into your evil desires. The Prophet Muhammad's jinn turned into a Muslim jinn, on the recitation of the Qur'an, as the jinn found it most beautiful. However, the notion of a qareen is not universally accepted amongst all Muslims."
*"Iblees"=Satan
**"Shaitan"=Devil
I found this on Wiki and I thought it was quite good.