You don't have to admit to reading the posts - just tell your friends and family you're only looking at the photos.
Many images are linked to a larger size for a closer look and/or to use as Desktop Backgrounds. See something you like and there's no large image - just make a simple request and let me know what size you need.
Don't get me wrong though - images are only offered freely for personal use as Desktop Wallpaper. Any other use needs my permission.