I think I'm a little rusty in the baby department...or maybe in the mischievous baby department. At 13 months do they understand "no" ? Does she not understand me or does she just not care? I know it's the age to touch and explore anything and everything, but I say no and she just keeps on going...I say it sternly and she just keeps on going.... I divert her attention and move her away saying no and she just crawls right back.....