I have explained this so many times over the years to new people, as it was to me when I was starting out. If you are helping out in live or recording situations with things technical or otherwise, and you don't understand what has been said to you, please ask for it to be clarified so you do understand. I will not make fun of you, I will never ridicule you, I just want you to get it right so we are all happy in the end. It will most always take more time for me to fix what you mess up because you didn't understand, than it will to explain it so you get it right.
I just had something happen to me the other day that involved having to do a classic re-patch after someone who appeared to know what I was asking for got it mostly wrong.
Remember... Statistically, guessing has a pretty high failure rate. That's a great way to get attention drawn to what you did wrong in a big way.