You are not a wishy-washy, whiny, indecisive male who does not know what he wants. Most guys find this concept difficult to understand because a Malepig will sleep with just about anything if enough beer is available. Women, unfortunately for us, are a little more picky. However consider this, you are out test driving a car and normally within the first thirty seconds of sitting in it and driving the vehicle, you have a pretty good notion of whether this vehicle is for you. If it appeals to you, you then determine if you will pursue obtaining it.
Women are fundamentally the same way.
In the first 30 seconds, she sizes you up. You have to be a suitable size in height and weight. Hopefully, you are able to stir some attraction in her. Your dress needs to be along the lines of a male that she wants to be seen with. Your haircut, facial hair, piercings, and tattoos need to be satisfactory to her.