bubbly
adj.full of bubbles or having a happy, energetic personality. You use this to describe someone who is always cheerful and friendly.
adj.containing bubbles or exhibiting a lively, cheerful, and high-spirited temperament. Often used to describe carbonated liquids or an extroverted personality.
“She has a very bubbly personality.”
“The waiter poured the bubbly liquid into tall glasses to celebrate the couple's engagement.”
“Her bubbly demeanor often masked a sharp, analytical mind that could dissect complex problems while maintaining an air of effortless cheer.”
Often used predicatively after linking verbs like 'be' or 'seem', or attributively before a noun.
From bubble + -y.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.