Naively, I asked a person I had met where the PT office was, and he gave me a phone number.
I contacted that number as if I were talking to a local office in the small town in the countryside.
In reality, I was talking to the national office, located in the capital of São Paulo. I spoke very casually, explaining the situation.
I was invited by a lady named Rosa to join the popular committees, in the media sector. I suggested that they make some viral videos, and I offered to edit them.
The lady said I could do the editing, and so I did. The theme of the initial campaign was about hugs and stars, but the video had neither hugs nor stars.