I guess what type of clothes are the least intimidating, yet still attractive. For example, guys may be more attracted to girls when they wear red (actually, it's a proven fact), but that red color might also make them feel intimidated because it is so bold.
sometimes the really attractive people can just seem more intimidating and you don't want to approach them. in that same light, sometimes certain aspects of a person's appearance can make them more intimidating.
i guess I was just asking what not to wear if I want to appear approachable.
Wearing heavy cleavage can make guys the most uncomfortable. We won't be able to concentrate on much else. Other than that, most of us are fine with whatever a girl wears. Oh, and skirts too are incredibly distracting.