Argentine Tango Etiquette
Tanda: a set of 3 or 4 songs.
First song: do not try to impress your partner for the first song. Keep steps simple, focus on rhythm, musicality, connection, step on the right beat, get to know each other's movement, adjust to each other.
Second song: could try more steps, but if it doesn't work, don't keep pushing. Be humble.
Follower: don't do too many embellishments that will stop/confuse the leader.