If you are interested in learning more about astrophysics or gravity, then there are many different outreach activities you can indulge in. I would encourage everyone to get involved!
I regularly help out with lots of different activities, from school workshops to public talks (and, of course, blogging). I recently helped out with the Listening to the Universe exhibition at the Royal Society. One of the more interesting projects I have been involved with e-x-p-a-n-d-i-n-g the history of the Universe in 45 min, an performance combining poetry, music and astrophysics in a planetarium dome as part of Stratford Literary Festival. Recent talk include the Carolian Astronomical Society (13 December 2017), the Universidad Técnica Federico Santa María (11 January 2018), the Lichfield Science & Engineering Society (15 February 2018), Sonoma State University (20 March 2018) and Charles University (10 May 2018).
If you are in the Midlands (apparently the region most interested in astronomy), then the Astrophysics Space Research Group runs public outreach activities. Particularly exciting are the regular Astronomy in the City events which I help to organise. The Gravitational Wave Group participates in a wide range of activities, including the British Science Festival; we organised some events to coincide with BritGrav, and recently put together an exhibition for the Thinktank museum. To coincide with the announcement of LIGO’s detection of gravitational waves, I helped to create the video below.
If you are lucky enough to be in Cambridge, the Institute of Astronomy hosts a selection of different outreach activities. There is a public open evening every Wednesday during the winter season, which I can vouch for being excellent. 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 keep up-to-date with science news following me, the University Observatory, or the Institute of Gravitational-wave Astronomy on Twitter; feel free to ask any astrophysics questions! The Gravitational Waves Group has a good collection of games suitable for outreach, teaching and research. For a small burst of procrastination, I made a gravitational-wave wordsearch for the Institute of Astronomy open afternoon.