Particular always orients particles to face the active camera, if it didn’t then most particle systems it generated would look very fake when orbiting (i.e. postcards in space).
The way around this is an odd sort of workaround. You’ll need to go into your ‘people pre-comp’ and make your ‘people layer’ a 3D layer, then go back into your main composition and enable collapse transformations on the pre-comp. You’ll also probably need to increase your particle size in particular. With the transformations collapsed Particular will not automatically orient the particles, but will instead mirror whatever orientation the pre-comp has relative to the camera.
Darby Edelen
Designer
Left Coast Digital
Santa Cruz, CA