If you want to share your fundraising page, you can do one of the following:
Copy the URL
You can copy the URL from your browser and paste that into any social network or email.
Click on the Social Share Icons
On your page is a list of social share icons that you can use to share to various social networks or EMAIL
Each of those icons will open up a SHARE dialog where you can share to that network. Note, you may need to login to that social network in order to complete that process.