Same as infancy. Never leave child unattended. Babies roll off beds, changing tables. Unless baby is on the floor, keep a hand on the baby or use a restraint system. Keep small things off the floor and out of reach.
Child has no concept of property.
Everything is a toy. Still puts everything in mouth. Likes to dump things out. Child must touch and taste everything that is new. Likes to tear paper apart and pull plants over to see what will happen.