still not 4 month old yet, the little one showed very strong interest of verbal communication with others. he would make all kinds of sound when face to face with other people. I put him facing the mirror, he saw his reflection and mine. at first he was not interested in his own image. after a few days, he found himself. he showed very excited looking at himself, making high pitch sounds.
today he was not interested in nursing. he ate a little, then stopped. after a while I tried to latch him on again and he made a loud sound, clearly rejecting my offer!
but they both love sound starting with 'P'. sound of "pathetic" made both giggling!