You can also put specific phrases on your invitation such as, andquot;We hope the four of you can attend, andquot;three seats have been reserved for youandquot;, or andquot;adult receptionandquot;. You should also include a reply by date with the appropriate contact information. If the children are over 18 then they should get their own invitation. It is vital to put postage on your RSVP’s. You should also send invites to your relatives and wedding party as they may wish to keep the invitation as a remembrance.