Not all babies have growth matching with desire of their old fellows. Old fellows of course always perceive when their baby can crawl, sit and walk, and especially in the case of its ability to converse, with it is of course.
In general, to a child to be able to talk with goodness, hence first of all he/she should be able to comprehend Language. For that, he/she should be able to listen better, Interest, and respond to timbale influence return social that happened around him, using its ability to comprehend and learn from experience associate with before he/she can translate new knowledge is acquisition of this into verbal expression and non its. For example, autism this disorder patient children which often experience of delay in ability converse, is especially caused by its weak understanding.
From ability converse to expression its feeling. A child also need correct motor oral planning ability of oral at the opposite of voice production, and coordination ability of for movement translate desire to converse which in fact.
It is true its correctness of ability associate with, and so growth converse much more quickly daughter compared to son, and delay converse habit in family.