Chris...
Float fishing is a really exciting way of fishing for pike, from that first tell tale bob to the float suddenly shooting away.
If you have a bait on the bottom try using a loaded deadbait pencil float set a couple of feet over depth, the float will naturally sit between halfway and two thirds down, you can then tighten up against the weight of your bait so that the float sits unaturally low and if a pike picks it up on the spot or runs you get a good indication... if you don't have a baitrunner or line clip on your rod just tie an elastic band around the butt section and pop the line under with your fingers and leave the bail arm open so that if you get a screamer of a run you won't lose the lot.
If you're suspending a deadbait try and do it where there is an underwater drop off as the pike will patrol the bottom of these areas waiting for prey fish to swim over the top of them before ambushing.
Have a good look at the predator forum, there's a mine of information in there but generally at this time of year look for the deeper water and other tell tale signs such as where Grebes are feeding as this will locate the smaller prey fish that the pike follow.
It would be a good idea to take someone experienced until you get into things, especially for unhooking and ensure you always carry a long pair of forceps at the very least and strike within the first few seconds, preferably straight away.
Good luck.