Find a talk which is happening today.
It’s doesn’t matter what the topic is, but ideally something you don’t know anything about.
Get a ticket, and listen.
Don’t worry about taking notes.
Don’t use your phone.
It’s not often you get to listen to someone passionate talking about their interests, even less frequently in real-life – and there are no shortage of events nearby, usually free, where experienced and interesting individuals are sharing their knowledge.
You don’t need to try and learn anything, or remember anything – just listen actively, and if your interest is piqued, you’ll be able to read further when you get home.