At this age your baby''s repertoire of sounds may include squeals, bubbling noises, operatic octave changes, and babbling. About half of all 6-month-olds babble — repeating one syllable such as "ba" or "ma" over and over. Encourage his budding language skills by babbling right back at him and by making a game of it ("The sheep says ''baaa,''" or "The goat says ''maaa,''" and so on).
