To set the icons, you have to go to Gossh Options » Header Settings » Social Icons » section.
You can add the icons you like into the “Add a social icon” field:
1. Select the icon
2. Insert the link of the icon in the “Social Link” field
3. Insert a hover title (optional) – this title will be displayed when you hover the icon with the mouse
4. Click on the “Add Icon” field to add the icon
Note: Don’t forget to click on the “Save Changes” button after you finish setting the Social Icons section.