Some women are not asked to dance because the men who are in the milongas are totally intimidated by how good you look, and how good you move
• Wasn't impressed
Opposite of number one (see above). They saw you dance before and were not impressed by how you moved or looked
• Nobody knows you
People normaly go with the familiar. If you're a stranger, it will probably be harder for someone to drum up courage to ask you. Coupled with the other factors, things could get worse
• The Cliques
Some people in cliques will only dance within that group. If you happened to be in a milonga that was pervaded, then you'd probably end up not being asked.
• The way you look
Be as beautiful as you can be, and match the crowds "Persona" Dress "Hip," or "Casual" if you're in a milonga frequeted by the Nuevo. Dress "Elegant" if you're in a milonga frequented by the Vieja
• Body Language
Sometimes, the way one projects oneself on a chair discourages men from approaching you
• Women sit together (Strength in numbers)
Some men would not ask you to dance because all the women are sitting in a big bunch. They don't want to offend the others by homing in on you to dance. So, to save the others' feelings, they won't ask you, until you break away (i.e. get a drink, get a snack, come back from the lady's room, etc.
My intent is to let people know what others may be thinking so you can leverage that.
WHY? Because, Ampster wants all Tangueros & Tangueras to DANCE!