Subject pronouns

Subject pronouns represent the person who speaks (first person), the one who is listening (second person), or the person, animal or thing you are speaking about (third person). In Italian, subject pronouns can be omitted because this information is shown in the verb ending. Third person pronouns egli, ella, esso, essa, essi, esse are not generally used. However, the other pronouns play an important role in communication.
For example: ‘ci vado’ is different from ‘io ci vado!’ or ‘ci vado io!’.
If someone is asking me: Are you going there? I can answer simply Sì, ci vado. If someone says: It looks like none of us will go … I can stress Io ci vado. If someone says: No one wants to go there. I can volunteer Ci vado io!

The polite form

The second person singular pronoun ‘tu’ is used for informal treatment (friends, family, children, classmates).
The third person feminine singular pronoun ‘lei’ is used in the formal register, to refer to an older person or to people you don’t know and in any formal situation. This means that in formal conversation you will have to conjugate the verb at the third person singular: ‘Tu come stai?’ becomes ‘Lei come sta?’ or ‘Hai bisogno di qualcosa?’ becomes ‘Ha bisogno di qualcosa?’.

Greetings