You won't get a spark.
I am not sure if you really have to touch them together or not but I figure why not since the are in my hands.
Maybe it is just so you do not have to leave them disconnected<img src=icon_smile_question.gif border=0 align=middle>
<img src="http://www.coreyandjayshow.com/pee.gif" border=0><img src="http://www.hyundaiperformance.com/upload/binladen.jpg" border=0>