The milonga is where the magic happens -- for many, it is the whole point of learning Argentine Tango.
At its simplest, it is a social dance or the venue where such a dance is held. Come to a milonga to listen to music, meet new friends, socialize, show off a new outfit or a pair of new shoes...and come to dance.
Milongas vary greatly depending on country, occasion, and the venue's goals; however, they tend to be formal more than casual.
1. Beginners should dance early on or late at night, when the floor is less crowded.
2. Observe the Line of Dance (LOD) at all times. The whole reason a milonga can happen is that everyone moves (like fish swimming in a school!) in the same direction at about the same time.
3. Do your utmost to avoid collisions with other dancers. If something does happen, apologize and keep moving.
Enjoy yourself. Few social events are more fun.