Enkidu lives in the wilderness, befriending the animals and protecting them. He lives as a wild-man. He is not at all civilized. As a person of the wilderness and as a protector, Enkidu stands as a formal opposite to Gilgamesh, who lives in the city and abuses his power over the citizens.
Gilgamesh's "second self and faithful companion. Arruru fashions Enkidu out of clay in the image of Anu. Enkidu is a "wild," primitive, or uncivilized man who has both the hardened physique and virtue of Ninurta, the god of war; the long hair of Ninursa, goddess of corn; and the hairy body of Samuqan, god of cattle. (eNotes)
When a trapper/hunter is troubled that he is losing much of his game because Enkidu is helping the animals escape the traps, he asks his father for advice. This advice leads to Enkidu falling into a "human trap", drawn by a woman into the clutches of civilization.
Soon after this, Enkidu comes to the city of Uruk and meets his double/brother, Gilgamesh.