@BorisKitten,
I don't really notice - I can be very unobservant when it comes to stuff like that - any way - I don't notice when my husband leaves without his ring. Often times we will be out and he looks down and says oops forgot my ring I'm single today. I don't even realize.
Personally I don't wear my rings when I go work out and it is typically by myself - wonder if that is why that older guy keeps hitting on me - never even occured to me. I also take off my jewerly when I was disrobe into comfty clothes - I just like to have the least bit of clothing on including jewerly when I get all comfy