Facebook events are often all over FB. It's up to you to decide which ones might help your cause.
1) Who is the invite from?
2) What type of event is it
3) What is the cost of this promotion
4) Does this benefit you
5) Proper usage of these events
First when you join certain groups and become acclimated to people in these groups you will notice an increase on invites to events.
My biggest advice to you is there are so many free events that you don't need to pay for attending. Some people make big money off of these events for the sole purpose of Making money. SO choose wisely. I have seen the same outcomes for Authors that have paid and those who attended free ones.
First Take a look at how many invites have been sent and how many have accepted. Also What Authors have been invited? This is key if there are bigger Authors than it is usually a greater attendance of fans which in turn gets your name out there more.
Second: What is your requirements in this event. Take note of the time Slots. Some times they will have you in for a half hour and I have seen people in for four hour stretches. Just remember once you commit stay with it.
I always recommend to book yourself for a half hour slot until you get the hang of it. Believe me that half hour goes by fast.
Prepare ahead of time: What I mean by this is you will have things to post during this event and have very little time to do it so have everything lined up in a folder for the event for easy access. This also gives you more time to respond to what people are asking.
Always stay involved in your time as well as others it shows good form.
For Example: Let's say I am inviting you to a Half hour slot for our Fourth Or July weekend Book event.
I as the host would of already posted times for people and they would PM me the times they would like.
Then I would put their names in those slots.
So during these events I would have at least four things to post if not five during a half hour event.
Let's say my new Book Scorch is the one I want to promote.
I would have a teaser of the book ready for one post kind of like a meme pic then all the ways you can buy the book.
So a pic of the book cover plus this would be under it
FB Likes page: on.fb.me/1QSPEte
FB Author page: on.fb.me/1G1vAil
Amazon US: amzn.to/1QSB5pC
Amazon UK: amzn.to/1IqZaUc
As you can see I have included many ways to reach me. So it's a plug within a plug.
Then I would add my next post as a contest to win a prize they all love to win prizes and look forward to them.
Now My advice on this is to start off with 1 event a month to build your audience
During this event for a Half hour segment.
I would have two of three Contest things.
You can find little contest memes on line to use and put them in a folder marked games. Some are silly like Use the first letter or your first name, Name your favorite color, and name a town out west. This will be your ELF name. See silly yet fun then you can say something like this
Contest #1 for a chance of an Amazon GC (Gift Card) Worth $5.00 I will pick a random winner from Random.org at the close of this contest which ends at midnight tonight.
You will see a bunch of people sign up for this because #1 everyone who is a reader loves to get Amazon gift cards so they can buy books.
Then you can do another about you post such as here is my Newsletter sign up please sign up so you don't miss out on the latest updates.
Then some where in there add another Contest.
Contest #2 for an E-book Copy of my book
Then add a game or a mission they need to accomplish. An Example I use for the person with the most shares of this post of my book they will win a free copy. You will how many people will share you book all over FB. This is a good way to get Advertising and all it cost you was a ebook copy of your book. You could of spent hundreds of dollars in advertising trying to get those results.
What I like to do with every event I am invited to is offer as one contest a Free E-Book copy of the Hosts book if they share my info as well. See what I did there?
So let's say Jessica. Bolduc is hosting an event I would go to her page and see what books she has written and Make a copy of the book info and put it in my event folder.
Then when it was time I would post it as a contest and make sure you put her name in the post so she see's it. Then for them to compete in the contest I put that they have to go like my FB fan Page. So now I have been good to my host and this in turns will surely get me a repeat Invite for her next event. Plus I helped her with a sale by buying her book to give to someone as a gift. Usually I limit these to up to $3.99. Then By boasting my Fan Page I get increased likes and awareness.
Now the added benefit to all of this is that other Authors, Bloggers and readers are all seeing this and don't think for one minute your not going to have major invites over this. To me it makes smart business sense to share the wealth.
Make sure you talk to your fans. If they pose questions or responses to any of your posts even the contests make sure you respond even if it's just a smiley face.
Now the most important factor in all of this is to be polite.
On your last post before your time is up make sure you thank your host as well as everyone else for all their kinds words.
Also : If some people try to get nasty or say rude things than always take the higher ground and be polite. If they write and said they hated your book. My usual response to something that is negative I always say well I understand my books are not for everyone but I do Appreciate the time you took out of your life and read it. Please let me know what I could do to improve my future work. This usually shuts them down and it also lets your audience and others see that you took the higher ground and are not out looking for a fight.