In Spanish, it isn't usually necessary to use the subject pronoun (I/you/he/she/it etc). The verb ending makes it clear who is doing the action. Me llamo Pablo y trabajo en una tienda. My name is ...
An example of an impersonal verb in English is 'one has' or 'one goes'. Use the pronoun se and the he/she form of a verb to form an impersonal verb. Impersonal verbs in English include verbs such ...