In order to receive tags, the RFID reader has to be activated through a click on the image. After that, the different RFID tags (sorry for my tiny tags) are used to create different forms. http://blog.formatlos.de/2008/12/09/using-rfid-in-an-actionscript-application+ More details
What are Tags?
Tags are keywords that describe videos. For example, a video of your Hawaiian vacation might be tagged with "Hawaii," "beach," "surfing," and "sunburn."