By temperament we mean the style a child uses to interact with the world. Some infants are extremely active, moving their arms and legs incessantly. Others are tranquil. Some children explore their environment eagerly for great lengths of time. Others do not.
Some infants respond warmly to people.
Others fuss and fret. Take your daughter, for example, we might call her a hypersensitive baby. When approached with loving affection, every system in her body seems to say, I am overloaded. Learning to take in and absorb all three might be too much to ask. By introducing one new stimulus at a time, you can gradually teach her to take in the world, not shut it out.