Toward the end of the second year various ceremonious movements, especially those of salutation, are also imitated. The child sees how an older boy takes off his hat in salutation; immediately he takes off his own head-covering and puts it on again, like the other boy.

All these movements last enumerated are distinguished from the earlier ones by this, that they were executed or attempted by the boy unsolicited, without the least inducement or urging, entirely of his own motion.

They show, on the one hand, how powerful the imitative impulse has become (in the second year); on the other hand, how important this impulse must be for the further mental development. For, if the child at this age passes the greater part of his time in company inattentive to manners, or unrefined, then he will imitate all sorts of things injurious to him, and will easily acquire habits that hinder his further development. It is, therefore, of the greatest importance, even at this early period, to prevent the intercourse of children with strangers, and to avoid everything that might open wrong paths to the imitative impulse.

The imitative movements of the muscles of speech, the child's imitations of sounds, syllables, and words are treated of in detail in the third part of this work. The first answer of the infant to the language addressed to him by his relatives, which is said to be made, in individual cases, as early as the eighth and ninth weeks (according to Sully, 1882), is no attempt at imitation, but a directly reflexive movement, like screaming after a blow, etc. Singing has already been mentioned as one of the earliest imitated performances. It is true of these, as of all later imitations, that the first imitation of every new movement is voluntary on the part of the child, and, in case an involuntary imitation seems to occur, then either this has already been often repeated as such, or it is a movement often practiced without imitation. The accuracy of the imitation depends little, however, upon the co-operation of a deliberative cerebral activity. On the contrary, children of inferior mental endowment among those born deaf sometimes possess (according to Grude) a purer and more distinct enunciation than those more gifted.