Each and every child develops at his or her own unique pace, but these are some general developmental milestones.

At 3 months most babies will: 

• Smile and make cooing sounds
• Turn toward light or bright colors
• Grasp rattles or hair
• Lift their head and chest while laying on their stomach 

At 6 months most babies will: 

• Follow a moving object with their eyes
• Turn toward a sound
• Roll over from stomach to back
• Reach for and pick up objects
• Recognize familiar faces
• Begin to babble

At 1 year most babies will: 

• Crawl
• Drink from a cup
• Wave bye-bye
• Pull themselves to standing
• Say one or two words

At 2 years many toddlers will: 

• Eat with a spoon
• Show affection
• Play independently
• Build a tower of four blocks
• Talk in 2-3 word sentences

At 3 years most children will:

• Walk up stairs alternating feet
• Put on their shoes
• Repeat rhymes or songs
• Use the toilet
• Play with other children for a few minutes