Users can also use search engines such as Google to find images for your site, including social icons. One thing to always remember is copyright. Not every image on Google Images is subject to copyright but most are. Some images may be allowed for non-commercial re-use and others may not be labelled to re-use commercially. Some you may not be allowed to re-edit yourself. You should always watch out for this. On Google you can get around this by clicking on tools and changing the usage rights. This filters images a user can use on their site.
Once in the navigation, you can choose between many different styles of menus. Once you choose the navigation you would like, WIX will automatically include each of your pages within the navigation bar. To place on your page, just drag and drop. Once on your page, you can fix to the whichever size you would like. Big or small, it is up to you. Also remember to place within the header of the page, as the navigation will then show on each page of your site.