About Multiple Exposures:
Double exposure is a technique that originated with film photography where you would expose the same frame of film twice (or more). Film can only be exposed to light so much before it will stop recording information. So the part of the film that was darker after first exposure will be most receptive to the light from the second click. It’s typically good to underexpose both photos, because you are exposing the “film” or “sensor” to light twice.
Being said... had to get a subject ( my friends ) to be on the first exposure ( firs shutter fire) then look around for a texture that would serve as a second exposure, the camera automatically combine these two images on one image file!
I'm lucky enough I have my lovely friend with me who I can point and play with camera- had fun doing it! another photo I could proudly hang on the wall!