Answer:
Sitting. Baby probably sits for long periods of time and can twist and turn to reach different toys.
Standing. About half of babies can stand for a few moments without support during month 12.
Walking. About one out of four babies this age are starting to walk. But don’t fret if yours isn’t. The normal age range of first steps is 9 months to 17 months, so it’s still pretty early for your toddler (eek!) to be walking.
Talking. Baby is probably saying "dada,” "mama" and at least one other word. (And yes, if you understand what they mean, it counts as a word!)
Understanding. What does a 12-month-old baby understand? Baby is like a sponge right now—absorbing and trying to make sense of everything around them. They’re beginning to tie words to their meanings. Baby also understands one-step commands if you use gestures, such as when you ask them to pick up a ball or look at the dog. This is also a good time to continue teaching them the meaning of the word “no.”