Walk and talk.

My little one started to walk at exactly 12 months. Kids usually start walking from 11-15 months. You start to notice them furniture cruising first. Talking is much more complicated. My little one said her first word around 8ish months and then by about 18 months she was talking non stop in full sentences. I have a relative who didn’t start talking until age 3.5. He’s not a scholar who graduated from a top Ivy League school. So hard to judge anything from how early they speak