RE: those dang leaves!
Deer are used to hearing leaves rustle, I think the trick is to not sound like a biped (human), I have snuck up on does just to see how close I could get. I took a step only when she took a step or was chewing, or a gust of wind came through, they would usually look when I stepped but if they don't see movement they probable won't bolt, but every situation and location can be differant, It's slow and exhasting but take a step and pause for 30 sec. or so then a couple more and pause again. look where you want to step and put your toes down first and slide you foot forward to avoid snapping twigs, NO HEALS If you have a grunt call blow it softly every now and then. Stop, Look, and Listen.
I think from my own experiences that deer key on movement and scent, not on sounds and colors.
Just my opinion, Ty