Lets try a simple card performance with your iPhone.
The way is simple.
I turn off a card with "a magic card" and only start it.
Business card exchange, cards, trading card ... A card deletes anything and starts it, and it is possible.
A help and the animation introduce how to use.
By the events that friends gather for in the year-end and New Year holidays and a new school term, do not you show a friend and a co-worker a slight wonder?