To see how many GuestPoints you have, simply look at the top right of your HomeExchange page once you have signed into your account.
These are the GuestPoints you already possess, which you can use to go on vacation and stay in another's home as a guest.
By placing my mouse over the number of GuestPoints that appear on my menu I will be able to view the history of my account's GuestPoints.
Click on "view all":
You can then see what you can do to earn more GuestPoints.
As shown below, I see that I can become verified and refer my friends in order to earn GuestPoints.
By clicking on "View details" I can see all the GuestPoint transactions on my account: the GuestPoints I earned by signing up or hosting other members, the points I gave to go on exchange, the points I earned by referring my friends, ... as shown in the example below: