By 15 months, most babies clap when excited, look at a familiar object when you name it, point to ask for something or to get help and stack at least two small objects! Encourage your smart little monster as their skills grow! Cheer on their skills to encourage more growth and learning!
To learn more about developmental milestones for a fifteen-month-old, read https://www.cdc.gov/.../milestones/milestones-15mo.html!
Original source can be found here.