Language learning can happen anywhere. If it is informal, it takes place in areas other than a classroom, meaning there is no teacher setting tasks or providing instructions and follow-ups. The learning, in your case, takes place in different Arenas. You need to decide where would be the best place to go in search of your learning, and who/what will be able to help you.
This is the learning that takes place in the public space. It especially focuses on active communication and the language interactions that can take place in the public space. This can be on public transport, in a coffee shop, at the grocery store, or an open house event in your neighbourhood.
This is the learning that takes place online while interacting with others (directly/ indirectly). This includes, e.g., forums, social media, online platforms, etc.
This is a more passive way of learning and can take place online as well as “in the real world”, but does not require any interaction with others. These can be activities such as reading a book, listening to a podcast, or writing a diary.