Beginner Gardening: Healthy looking leaves falling of rubber plant. Help?, 1 by GhiaDon

GhiaDon wrote:
I've had this plant since June. Not entirely sure what kind of plant it is. My neighbor, she believes it's a rubber plant...

It seemed healthy, had some new growth start, then around the very end of November, leaves started to fall off. It origionally had four leaves on each stem, three on the small one. Now there's just one on each, and I'm worried about accidently touching one incase it falls. They never browned, or shriveled, just come home from work and find one sitting in the pot. Also, the leaves uses to be horizontal, now they stand almost straight up.

I'm not sure what to do to have a healthy plant again. I moved it to the hallway stairs (I live in a basement apartment), where it's getting less ligt, and I'm watering it even less than I used to do (compared to my other plants it doesn't seem to drink that much water to begin with..)

Any advice or help would be welcome. I'm fairly inexperienced in taking care of this guy...