From WordNet (r) 3.0 (2006):
chipper
adj 1: having a cheerful, lively, and self-confident air;
"looking chipper, like a man...diverted by his own wit"-
Frances G. Patton; "life that is gay, brisk, and
debonair"- H.M.Reynolds; "walked with a jaunty step"; "a
jaunty optimist" [syn: chipper, debonair,
debonaire, jaunty]