Social and emotional skills at different ages

When do kids gain social and emotional skills? Children start developing them as babies, and new skills emerge as they get older.

Not all kids develop at the same pace. But there are some milestones you can expect kids to meet around roughly the same age. See this list of social and emotional milestones at different ages.

Infants and babies

By 2 months

  • Cry to get needs met

  • Occasionally self-soothe by sucking on hands and fingers

  • Start to smile and look directly at you

By 4 months

  • Cry in different ways to show hunger, pain, or being tired

  • Smile in response to caregiver’s smile

  • Play with toys by shaking them

By 6 months

  • Are more aware of which people are familiar and which are strangers

  • Can respond to other people’s emotions by crying, smiling, or laughing

  • Enjoy looking at themselves in the mirror

By 9 months

  • Start to show stranger anxiety

  • May cry when familiar faces aren’t around

  • Start to prefer some toys over others

By 12 months

  • Play favorites with familiar people

  • Are more interactive (like handing over a toy or a book, or making a specific noise to get a caregiver’s attention)

  • Enjoy simple interactive games, like patty-cake and peekaboo

Toddlers and preschoolers

Ages 18 months–2 years

  • Have more temper tantrums and become more defiant as they try to communicate and be independent

  • Start simple pretend play, like imitating what adults or other kids are doing

  • Become interested in having other kids around, but are more likely to play alongside them (parallel play) than with them (cooperative play)

Ages 3–4 years

  • Start to show and verbalize a wider range of emotion

  • Are interested in pretend play, but may confuse real and “make believe”

  • Are spontaneously kind and caring

  • Start playing with other kids and separate from caregivers more easily

  • May still have tantrums because of changes in routine or not getting what they want


Ages 5–6 years

  • Enjoy playing with other kids and are more conversational and independent

  • Test boundaries but are still eager to please and help out

  • Begin to understand what it means to feel embarrassed

Ages 7–8 years

  • Are more aware of others’ perceptions

  • May complain about friendships and other kids’ reactions

  • Want to behave well, but aren’t as attentive to directions

  • Try to express feelings with words, but may resort to aggression when upset

Ages 9–10 years

  • Share secrets and jokes with friends

  • May start to develop own identity by withdrawing from family activities and conversations

  • Are affectionate, silly, and curious, but can also be selfish, rude, and argumentative

Middle-schoolers and high-schoolers

Ages 11–15 years

  • Start thinking more logically

  • Are introspective and moody and need privacy

  • Value friends’ and others’ opinions more and more

  • May test out new ideas, clothing styles, and mannerisms while figuring out where/how to fit in

Ages 16–18 years

  • Strive to be independent and may start emotionally distancing from caregivers

  • Start trying to discover strengths and weaknesses, at times seeming self-centered, impulsive, or moody

  • Show pride in successes

  • Spend a lot of time with friends and may be interested in dating

Remember that all kids develop social and emotional skills differently. If kids don’t meet every milestone for their age right away, that’s OK.

If you’re concerned that a child isn’t hitting many of these milestones, keep track of what you’re seeing. Share your concerns with others who can help. Parents, caregivers, teachers, and health care providers can all play a role in helping kids build social and emotional skills.

Learn more about trouble with social skills.


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