Uhhh was this a prank and you fell for it? Was there a hidden camera? Is this a prank on me being the first to respond? How are so many of your ventures on the tennis courts soap operas? Amazing.
Here' how the pros signal. Read carefully. The net-man holding his hand behind his back either has an open hand (poach) or closed hand (stay). The server looks at the signal, says yes or no. Then serves. Sometimes the pros even discuss what they will do between points by whispering their plan to poach, fake or stay. Very complicated I know. Let me know if I need to repeat it.
With all the lessons you've paid for no pro has every taught you poaching signals? If your answer is no, I'd sue for my money back.
"i thought those were just a little harmless brown bugs, you know the ones take wings and fly? but it turned to be Flees." Fedace