If you are in the lucky position to be getting married again, you will have to find out about etiquette and ideas for second weddings, and yes, there is a difference.
The next step will then be to make it known to all your friends and other family about your important decision. Some ways to make this announcement will be via newspaper, email, by phone or by having an engagement party. The choice is yours as to which method or methods you want to use.
Although this is generally the rule with a first marriage, the parents will most likely not be hosting the second engagement party but you may have some friends and family who would like to do it. Maybe they introduced the bride and groom-to-be and want to celebrate your happiness with you. Friends or family will certainly tell you in advance if they are willing to host the party.
It is not etiquette for the couple to be hosting an engagement party but you can have a party and then announce that you are engaged. There is a difference and this will not be a gift-giving event though since we do not host gift-giving events for ourselves. There are indeed slight differences in the etiquette and ideas for second weddings.
Since either or both of you have been married before, you will already have most items necessary for running a household and besides you may feel uncertain about registering for gifts. It is perfectly acceptable to register for a second or encore marriage. Even though you may not need a lot for your household, many people will feel like celebrating with you by giving you something and they would appreciate the guidance as to your taste and what you may need or would just like to have.
Your happiness should not be marred by anything that happened in the past. Your family and true friends will be happy for you and will certainly be delighted to help you discover new ideas and the correct etiquette for your second wedding.