The word which means active and energetic​

industrious, vigorous, spry, powerful, dynamic, spirited, lively, active, sprightly, aggressive, strong, enterprising, tireless, animated, breezy, brisk, driving, forcible, fresh, hardy

industrious, vigorous, spry, powerful, dynamic, spirited, lively, active, sprightly, aggressive, strong, enterprising, tireless, animated, breezy, brisk, driving, forcible, fresh, hardy, and of course, active

a. by showing how a character reacts to or interacts with his or her   surroundings

explanation:

the setting reveal information about a character by showing how a character reacts to or interacts with his or her   surroundings.