Um, there's nothing to see. The clipboard is a virtual place for copying and/or pasting text or images. You never see the clipboard itself - it's just a name for a bit of short-term memory.
An example: if you see some text on a webpage that you want to use for something else - say a blog - and you don't want to type it out yourself again, then use the clipboard. Simply highlight the text and press 'ctrl' and 'c' together (or 'cmd' and 'c' if you're using a Mac). This copies the text onto a virtual clipboard. Then, to use the text in another document, just set your cursor to where you want the text to appear. Then press 'ctrl' and 'v' together (or 'cmd' and 'v' for Macs). This will 'paste' text from your clipboard into where you put the cursor.
The same technique works for pictures, as well as sound and video in appropriate software.