Formal:
* Aimer sourire: This is the most literal and formal way to say it.
* Avoir le plaisir de sourire: This emphasizes the enjoyment of smiling.
Informal:
* Aimer bien sourire: This is a more casual way to say it.
* Sourire avec plaisir: This emphasizes that smiling is a pleasurable action.
Other options:
* Avoir un sourire facile: This means "to have an easy smile," suggesting a person who smiles often.
* Être souriant(e): This means "to be smiley," indicating someone who smiles frequently.
The best way to choose the correct phrase depends on the specific situation and the level of formality you want to convey.