examples of behaviors that should be followed up with a developmental evaluation:
 • Does not look at your face on a regular basis 
• Does not respond when called by name 
• Does not enjoy being held 
• Is difficult to soothe 
• By approximately 4 months, does not coo, babble, or smile 
• Does not show facial expressions like happy, sad, angry and surprised by 9 months of age 
• By the first birthday, does not wave ‘bye-bye’ or use other gestures 
• By the first birthday, does not shake head ‘no’ 
• By the first birthday, does not say ‘mama’ or ‘dada’ 
• By the first birthday, does not play games like pat-a-cake 
• By 15 months, does not show you objects they like 
• Loses skills and abilities, like stops saying words or stops looking at you