I know I look out the window/peep hole when I hear the door bell if I am not expecting anyone. I don't bother opening the door if I see a 'blue collar' person attempting to solicit or hand out a piece of paper. However, I would mot likely open the door if I saw a nice looking woman even if she was selling something.
It is a well known fact that attractive/men woman get a higher response rate in the ad world versus an average Joe or obese Olivia. Men might sign up for your service on the spot just to 'please' the attractive woman.
Hopefully you know a woman you can ask as you will have a hard time finding one via the conventional employer routes.