How do you say He is fun to be around in French?

There are a few ways to say "He is fun to be around" in French, depending on the nuance you want to convey:

Formal:

* Il est agréable à côtoyer. (Literally: He is pleasant to be around)

* C'est agréable de passer du temps avec lui. (Literally: It's pleasant to spend time with him.)

Informal:

* Il est cool. (He is cool.)

* C'est quelqu'un avec qui on s'amuse bien. (He is someone with whom you have a good time.)

* Il est sympa. (He is nice/friendly.)

* Il est marrant. (He is funny/entertaining.)

More descriptive:

* Il a une bonne énergie. (He has good energy.)

* Il est toujours de bonne humeur. (He is always in a good mood.)

* Il a le sens de l'humour. (He has a sense of humor.)

* Il est plein de vie. (He is full of life.)

The best translation will depend on the specific context and the level of formality you want to convey.