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toddler - n. a young child who is just learning to walk
naughty - adj. behaving badly — used especially to describe a child who does not behave properly or obey a parent, teacher, etc.
litter - n. a group of young animals that are born at a single time
personality - n. the set of emotional qualities, ways of behaving, etc., that makes a person different from other people
laid-back - adj. relaxed and calm
particularly - adv. more than usually
pace - v. to walk back and forth across the same space again and again especially because you are nervous
agility - n. ability to move quickly and easily
registry - n. a place where official records are kept
characteristic - n. typical of a person, thing, or group
