My method is to set up a mic (one or two) in the chosen room. Set to record a loop of a number of bars (sometimes an odd number). Clap at a fixed position for each recording of the loop - move (not too far) at the end of loop to a new position and keep clapping. Then change position each time.
Maybe I'm wrong but it seems to give a variety of sounds from different parts of the room. Repeat for many iterations of the loop until I have the desired numbers of clappers. By pasting odd numbers of bars in my blocks for 4 and 8 bars music the different claps appear at different parts of the music - especially for repetitive type music.
Just seems to give a bit more variety. I suppose it depends on how tight you want it.