General fun:
* Jolly: Happy and cheerful, often making others laugh.
* Lively: Full of energy and enthusiasm.
* Spirited: Energetic and enthusiastic, especially in a playful way.
* Vivacious: Full of life and energy, charming and attractive.
* Playful: Lighthearted and enjoying games and teasing.
* Entertaining: Someone who is good at amusing others.
* Amusing: Funny and enjoyable to be around.
* Charming: Pleasing and attractive in personality or appearance.
More specific types of fun:
* Adventurous: Someone who enjoys trying new things and taking risks.
* Outspoken: Someone who expresses their opinions freely and honestly.
* Exuberant: Full of energy, excitement, and enthusiasm.
* Zany: Odd, eccentric, and amusingly unconventional.
Other possibilities:
* Lighthearted: Easygoing and carefree.
* Good company: Someone who is pleasant to be around.
* A good time: Someone who makes things enjoyable and fun.
The best word to use depends on the specific context and the individual's personality.