It is very pleasing to attend any British social gathering. Aside from their polite and quaint social manners, you will be astonished to see everything organized, well-coordianted and in its proper place. Even in the way they speak, you will hear a gentle but reassuring tone. you can almost sense their propriety in plenty of ways.
Next time you get an invitation, better act accordingly, that is with respect and caution to British social custom. If an RSVP note is glaring in your invitation, it means that you should confirm whether or not you could attend to the sender's request. Do not accept invitaions if you can't come. Refuse politely by saying "thank you" and state your alibi or reason for not coming with sincere consideration. But if ever you'va already accepted the invitation but in the last minute you can't possible go, inform the person ahead, the soonest possible before the event.
While it is not a compulsive requirement, to express goodwill and grace, bring along some tokens of appreciation like flowers or chocolates. And after the visit, you may also phone the gracious host or write a thank you card. These
some useful tips to observe the best
social etiquette the British society upholds.