Learn Portuguese (Portugal): Tens fome? — Tenho. - Are you hungry?

In Portuguese, you don't say that you are hungry. Instead, you say that you have hunger. Tens comes from the verb ter (to have), and fome means hunger. You will also use ter for other physical states, like being thirsty (ter sede) or cold (ter frio).

Where are the words for 'you' and 'I' in this sentence?

Portuguese speakers usually drop subject pronouns like tu (you) and eu (I) because the verb ending already shows who is doing the action. Tens can only mean 'you have' (informal), and Tenho can only mean 'I have'.

Why does the person answer with Tenho instead of just saying yes?

In Portuguese, the most common and natural way to answer a yes-or-no question is to simply repeat the verb. Since the question asks 'Do you have?' (Tens), the correct way to say 'yes' is to reply 'I have' (Tenho). You can say Sim, but repeating the verb is much more natural.

Can I ask Tens fome? to anyone?