Re-serves

[DncnRef]

Having read and reread the last three case books on re-serve (NFHS 8.1.5) I have a simple question for all of you:
After the signal for serve the player bounces the ball a few times and looks to the coach for direction, noticing that the coach is busy, the player just stands there. Just before the 5 seconds is up the player looks at me and drops the ball to the floor. Should I give the player their one and only re-serve or should I whistle the 5 seconds and move on?

If you have several of the older case books please read situation 2 carefully and then give me your best answer. You may also "quote" the case books if you like. Also, find the word "toss" in the rule book for me, okay?
Bob