In my opinion, most deer (civilized or not) react to human scent as they would the scent of any potential predator, and their response to that scent is usually based on a perceived-threat basis. That is, if the scent is hot (fresh) they may become highly alert or even flee. If the scent is cold, most deer are not going to be overly alarmed. And, of course, there are a myriad number of reactions in between. I have had deer follow my tracks to the base of my tree, trailing me as if they were curious to know where I'd gone.