The 11-step guide to being a good guest. The Guardian
Being a good guest starts before you arrive. Reply to any invitation as promptly as you can. (If you can’t accept, say so early.) The answer to any invitation is yes or no; you don’t have to share issues with how you’ll get there, babysitters/parking/travel/what you’ll do with Granny and the dog. Talking of which, don’t ask if you can bring extra guests or pets who weren’t invited – that bit is your job to deal with.