The Yad stop puts me into a fun vibe, jogging or walking fast along side her to get infront of her kinda puts a kick into your stride and livens the whole interaction up, it definately gets me smiling and most of the girls I approach this way end up smiling to although be it after a little shock to her system hehe
I too sometimes be in a dilemma because I cant quite see her face, especially on a sunny day when most girls wear cool shades which hides her beautiful eyes but I think there is no harm in approaching and making a genuine compliment and having some nice banter, if shes not your type then you need to ask her out, atleast you will have made her day and practiced your conversations skills and be warmed up properly for your next approach.
The empty path/street thing, I've had similar experiences, once I saw a nice woman in the park but it was evening time and the park was deserted so I just didnt approach her because I didnt wanna freak her out thinking that I'm some mugger. If you are gonna chat to a girl and the place is secluded I would make eye contact with her and approach her from the side or front of her, thats if she is walking towards you, because the Yad stop or approaching her from behind will freak her out and then you will have to give her mouth to mouth after she has fainted and fallen onto the ground.
Messages - babe catcher
that would be just perfect.
no problem I'm cool enough to tough it out alone 
