hi walkingmate2 karl here.
what we do is when pups are very young we bang the food dish for the pups as we give them there food ,we then after thay start to come running for food we blow the whistle...(we use two pips ) all the pups soon get the idea that the whistle means food is on its way..
i know its abit late for this but you could try this as you feed your dog he/she will soon know two pips means food....!!
The only thing i will say is that on jakes 1st shoot he just ran round chaseing the other dogs...!And when he did find game that was it he was off...!! and would the oops come back.I think that a bit off work on stop and come back on live game would help you.,after all the last thing you want is being told off for the dog going into the next drive....!!!!!
I use 2 pips for comeback..
1 soft pip for stop/sit and a hard blow if hi sticks 2 fingers up at that one ...!! it took a long time but he is ok at them now...
must say that rabbitts r a oops on a shoot and if your dog is not going to stop/come back it will poss be this that he/she will mess up on i found it very hard to stop him on this...oops...!!!

Trust me he/she is bound to find one...!!!
on a shoot.
As for hand signals/turn pips i think it depends on the shoot....eg the ones i work on have very heavy cover so you carnt see the dog anyway...if you have one with open space then thats diff...i use 2 pips and a hand signal for left or right..i personaly do not think that turn signals on dogs 1st beating day is worth it recall and stop would be 1st on my list...then progress onto turns
I thinks that most of all enjoy the day and if he/she has a bad day then try not to feel bad we all had to start at some point the more you do it the better he/she will get....just make everyone aware its the dogs 1st time out...it goes a long way i think + you may get ome tips off other beaters...
One last thing sorry for going on how old is your dog and how is he to gun fire???
Its poss this could have an effect on the dog to what with all the other fun going off!!!
Good luck and have fun

....And pls if you have a bad day just keep going it will all come good in the end.you are vital in keeping the sport going,and what your dog loves!!!!!!!!!!!!!!!!!!! doing..