Well, its hard to answer. If you are in better shape than the other men in a group, then your odds are already better(more physcial attractiveness and more potent pheromones). If you enhance your pheromone signature(balance not excess), then your odds go up. If you practice communication skills(talking and writing) then your odds shoot up more, and if you work on listening skills your almost there. Finally if you have a good career, make decent cash and have the above women fawn over you.

Its so many variables, as I said in another post. Its a collection of traits, and love is 2 parts psychology, and 2 parts ether(or spiritual if you will). Remember pheromones although are chemical exert a behavioral reaction. (see behavioral endocrinology : this is truley the next phase of psychiatry/psychology in my opinion)

Mike