There aren't many rules here - the vision is to create a nice place, full of nice people, and for humanity to kinda work well.
That said, here is a brief list of dos and don'ts:
Please:
respect the house and be patient with its foibles - it's old and requires some compromise/ forgiveness sometimes
be as loud as you want
look after the carpets - no food or drink upstairs
explore
respect the animals and countryside
relax
keep the oven hob clean - ceramic hobs are a pain I know, but...
play and have fun
don't flush things you shouldn't down the toilets. No 21st-century mains sewerage here π©
tell me if if something has happened - if I know, I can sort it