Your 12 - 18 months old explorer is in the language development and the peak period of physical development. Babies like learning to speak now. Although they haven’t developed the ability to talk yet, under proper training, a 12-month-old baby can say around 5 to 10 simple words such as "Dad, Mom, Aunty, Milk, Hold”. Growing communication makes things a little less frustrating for parents. Also, babies can independently stand up for a moment, walk a few steps without help, bend over, wave, squat and then stand, and therefore, they can be very mobile.