After Dimmesdale kisses Pearl's brow, what does she do?

Pearl runs to the brook to wash it off.

"The minister--painfully embarrassed, but hoping that a kiss might prove a talisman to admit him into the child's kindlier regards--bent forward, and impressed one on her brow. Hereupon, Pearl broke away from her mother, and, running to the brook, stooped over it, and bathed her forehead, until the unwelcome kiss was quite washed off, and diffused through a long lapse of the gliding water."