If you are interested in learning more about astrophysics or gravity, then there are many different outreach activities you can induldge in. I would encourage everyone to get involved!
If you are lucky enough to be in Cambridge, the Institue of Astronomy hosts a selection of different outreach activities. There is a public open evening every Wednesday during the winter season. I have previously given talks on solar neutrinos, the Earth's gravity, detecting gravitational waves in space and the Big Bang.
If you prefer to stay behind a computer, then you can ask a professional scientist a question about astrophyscis at Ask an Astronomer. If you are looking for a little procrastination, then I made a gravitational wave wordsearch for the Institute of Astronomy open afternoon.