You'll remember this one and as said will be the first of many,every chance you get practise,when i walk my dogs i "stalk",as in watch where my feet are going and such,just trying to be quiet,if i see anything i try to get close,use things between as cover,strange hobby but hey ho,tom that advice about the head down is something I was taught as a kid and still tell people now,same with birds feeding or preening,when its head goes down you go forward,don't hear it said much but one of those things right at the front of my mind!