0 to 4 Months   Startles (jumps) to loud noises Can be soothed by a familiar voice Watches speaker's face when spoken to Makes "aaah" or "cooing" sounds Will "talk" back and forth with mom and dad 5 to 9 Months   Turns head to interesting sounds Responds to quiet talking, other soft sounds Will awake to a loud noise Enjoys rattles and other sound making toys Begins to understand "bye-bye" with a hand motion Will stop - at least for a moment - when you say "no-no" Looks to mom or dad correctly when "mommy" or "daddy" is spoken Will make noises when alone Babbles using long strings of sounds (ba ba ba ba) 10 to 14 Months   Turns head in any direction Responds to her name even when spoken quietly Can point and look at familiar people or objects when asked Uses voice to get attention Begins to say simple words: "mama" "bye" Imitates words said by others Jabbers and acts like she is talking Uses consonant sounds Enjoys music, may try to dance or make sounds to music 15 to 23 Months   Follows simple directions Recognizes body parts when asked Uses words of more than one syllable 24 Months plus   · Understands most of what is said to her Enjoys being read to Says two word sentences "more cookie" "go bye-bye" Uses 50 + words correctly Information obtained from The Sounds of Texas Project The UT Dallas Callier Center