I don't believe much in the whole scent thing. I can handle mine with no perfume on, with such and such perfume on, or smelling like hand sanitizer/soap and they always act the same. I believe it's how you approach them: if you're nervous they'll pick up on and it act accordingly.

IMO a relaxed bp is one who isn't physically tensed up, nor one who is trying to get away and who looks visibly unnerved (acting jumpy, flighty, hissy, etc).