At 18 months, children are developing gross and fine motor skills. They can walk, run, kick a ball, and build a 3 brick tower. Language development includes having a vocabulary of 6-10 words and being able to point to pictures and name body parts. Socially and emotionally, children may have temper tantrums and show object permanence but not gender specific play. Warning signs include inability to stand without support or lack of spontaneous vocalization.