Thanks to patchou for the Idea 
I changed the one in patchous sample so it would only send Ping? and not Pong! each time, and the other person would send Ping or pong accordingly, The 2 people have to have it, and it can be used to check ping time (for now you'll have to count the seconds yourself) 
For example you send 
/xping
(Ping? will appear on screen) 
if the other person has the plugin he sends
Pong! 
automatically.
I know this is kind of a useless plugin but i think its fun because you can actually measure the response time (as i said, in your head, for now) I will try and add a timer in so that it says the response time automatically 
