In the US it’s common for activists to ask people to individually contact their representatives about some issue. (“Call your senator and ask them to vote NO on Bill 123, which bans putting pickles on sandwiches!”) Most people don’t actually take this action, but they can do so by phone, email, or regular mail. The contact information is public and easily available [on a website.](https://www.congress.gov/members/find-your-member) (Side question – is there a website like this in your country?)