Disconnecting fuel lines need help.

I bought a set of disconnects the other day and now im wondering how to use them. From what i can see it just looks like i need to pull out 2 clips one on each line so how do i keep the line from leaking gas everywhere once it is disconnected. Id like to know before hand so i dont run into and suprises. Thisis the last step before the 4cyl comes out for good. I asked in 2.3 tech w/ no response.
 
The lines will only drip gas for a short while. Once the pressure bleeds off the lines, they will quit dripping. A rag will soak up the small amount of gas that leaks out.