pep_up
1. [ verb ] urge on or encourage esp. by shouts
Synonyms: inspire urge barrack urge_on exhort cheer
Examples:

"The crowd cheered the demonstrating strikers"

Related terms: encourage cheerlead cheering exhortation cheerer
2. [ verb ] e.g.,make more interesting or lively
Synonyms: juice_up ginger_up jazz_up
Examples:

"juice up a party" "pep up your paper"

Related terms: enliven
Similar spelling:   pop_up