Perk

1. To make trim or smart; to straighten up; to erect; to make a jaunty or saucy display of; as, to perk the ears; to perk up one's head.
2. Smart; trim; spruce; jaunty; vain.
3. To exalt one's self; to bear one's self loftily.
4. To peer; to look inquisitively.