In Spanish, when expressing likes or preferences, the verb "gustar" is used. The form of "gustar" ("gusta", "gustan") depends on the subject, that being 'what you like', a singular thing ("gusta") or a plural thing ("gustan"). For example:

Also, we always use the singular form of verb gustar when followed by actions. You can find here a lesson about "gustar" + verb to say like/ like doing something.

Un saludo

Silvia