I observed 3 to 36 months, with the end 3 months, the infant smiles spontaneously, playing with people and might cry when stop playing games. the infant can briefly calm himself. He begins to babble, cry in different ways to show hunger, pain or tired. Using his hands and eyes together. Infant holds the head steady, unsupported, he can hold a toy and shake, bring hands to mouth. At 6 months, the infant knows familiar faces and he is playing with other people. He starts making sounds, begins to say consonant sounds " m, b". he is looking around at things nearly. The infant can roll over in both direction (front to back, back to front). At 9 months, the infant sometimes clingy with familiar and fear other people. the child is shy or nervous with