Some words that have been used to describe my younger daughter include enthusiastic, zany, intense and poised. There are certainly times when that skews over into the realm of outrageous, wild, or precocious. Do not let this child get over-tired is the take-home lesson from those times. Ever. Unlike (normal) kids who tend to slow down or get drowsy when tired, Bug winds right up. Always has. Tom draws parallels between a tired Bug and the revving of the Tasmanian Devil from the Bugs Bunny cartoons. Just with less property destruction and more screeching.
She has her shy moments, but there tend to be few situations which leave her nonplussed.
The only way I can describe it is to say that there is an indefinable Bugness about her that lends...a certain panache to her actions,
an intensity to her concentration,and a joie de vivre to her being.