Me gusta el chocolate.
English: I like chocolate.
In Spanish, 'gustar' and similar verbs are used to say what you like, what interests you, or what bothers you. These verbs work differently than in English: the thing that is liked is the subject, and the person who likes it is an indirect object.
Use 'gustar' and similar verbs to talk about things you like, love, interest you, or bother you. It is common with hobbies, food, people, or activities.
Me gusta el chocolate.
English: I like chocolate.
Nos gustan los gatos.
English: We like cats.
¿Te interesa la música?
English: Are you interested in music?
A Juan le molesta el ruido.
English: Noise bothers Juan.