General:
* Full of life: They radiate energy and enthusiasm.
* Bubbly: Their personality is light and effervescent, like champagne.
* Radiant: They have a bright, glowing aura that draws people in.
* Sparkling: Their eyes and smile are full of life and light.
Specific:
* Animated: They use their body and expressions to communicate their excitement.
* Enthusiastic: They approach everything with passion and excitement.
* Spirited: They have a strong, independent personality and aren't afraid to express themselves.
* Dynamic: They are constantly moving and changing, never boring.
* Charismatic: They have a captivating presence that draws others to them.
* Ebullient: They overflow with happiness and energy.
* Exuberant: They express their joy and excitement freely and openly.
Figurative:
* A whirlwind of energy: They move quickly and with a lot of force.
* A ray of sunshine: They brighten up any room with their presence.
* A walking party: They bring the fun wherever they go.
Examples:
* "She was a vivacious young woman, always the life of the party."
* "His vivacious personality made him a natural leader."
* "The room buzzed with energy as she entered, a vivacious presence that lit up the entire space."
Ultimately, the best way to describe a vivacious person depends on the specific context and your desired tone.