Nobody is flawless and flewlessness is not expected, but there is no reason not to strive for perfection!
Most of us know how to conduct ourselves in a normal day to day setting, and being a good wedding guest simply comes down to manners. How well behaved are you?
We truly think the world of our guests, but a little list of helpful guidelines never goes un handy.
1) The RSVP-ing
RSVP as soon as possible, and most important NEVER after the given responds date. The way to respond is often written in the invitation. Today it is often by phone. When calling make sure that you reach the correct person, and by all means never leave you answer on the answering machine or write them a text! Whether the RSVP is to the host or an second person, make sure to given the person your gratitude. If the RSVP is not given to the host, still make sure to thank them right away for including you in their celebrations.
Originaly the polite way to RSVP was in the same manner the invitation was given. If by phone one could RSVP by phone, if by letter the responds should be given by letter. This practice is almost gone but personally I still RSVP by letter on a written invitation. It is just so romantic and different to receive a letter instead of a phone call. If you would like to impress and do something special for the host, then try RSVPing by a hand written letter.
My last comment on this subject is very important! If it is only your name in the invitation, then only you are invited! It sounds simple, but unfortunately it is not for everybody. Plus one is only if mentioned, and you cannot expect your brand new boyfriend to be invited, and you can certainly not ask for it. The same thing goes for children. If they are not on the invitation, then they are not invited. This goes for almost all children, except infants. They are so pedended on their mother, that the hosting couple would expect it to be present, when inviting the parents. But when it comes to weddings you should expect it to be children free, unless is says otherwise on the invitation.
2. The gift
This is quit easy. Stick to the registered gift list, and if you think you have spotted the holy grail of wedding gifts and it is not on the list, then make sure it can be returned for a full refund. As for the budget, it is up to you, but wedding gift attends to have a higher budget than other celebratory gifts.