General translations:
* He/She is entertaining. (Most literal and general translation)
* He/She is fun. (More informal, but conveys the idea of enjoyment)
* He/She is amusing. (Focuses on the ability to make someone laugh)
* He/She is interesting. (Emphasizes the captivating nature of the person)
More specific translations:
* He/She is a real laugh. (Informal, implies the person makes you laugh frequently)
* He/She is a riot. (Informal, implies the person is very funny)
* He/She is captivating. (Emphasizes the person's charm and ability to hold your attention)
* He/She is a joy to be around. (Focuses on the positive and pleasant experience of being with the person)
Ultimately, the best translation will depend on the specific context and what you want to emphasize.