Example Sentences:

Ramayana:  The perky pranks of Hanuman as a child often offer some comic relief amid the Ramayana’s serious storyline centered on loss, betrayal and abduction.

Mahabharata:  When the Pandavas came to Panchala to attend Draupadi’s svyambara, the perky festivities in the city contrasted sharply with the silent serenity of the forest from which they had come. 

Bhagavad-gita:  If we presume that everyone who has a perky smile also has a happy heart, we are equating appearance with substance, which is often the cause of spiritual blindness.