For those arriving on Friday ...
The restaurant may be open, and if so that will probably be from 19:00 to 20:00 or so. Dinner is not included in the bed'n'breakfast rate, so you will need to pay separately.
Alternatively, there is a Pub in walking distance - the Labour in Vain, about 3/4 mile, or a 15 minutes walk down the drive and turn right into the village. Booking is probably recommended, but be aware they they often find customers to be a surprise, and it's worth double checking that any booking has, in fact, been recorded and they are expecting you.
In previous years people have gathered in the bar area, had a refreshing beverage, played games, shared puzzles, and generally just mingled. That will probably happen again. Nothing formal is planned or arranged.
In case this information makes some difference to your decision, about 40 people were around on Friday evening in 2018, and 100 in 2019.
Next: Saturday Morning ...