In the world of Love's Labour's Lost, where men and women are kept apart, seduction takes the form of language. Instead of a plume of red feathers, the men have their wits. Intellectual conversations and witty banter are mating rituals indulged by nearly all characters that we meet. Prolonged volleys of wits establish sexual chemistry between two potential partners. Intelligence is also powerful, establishing status between characters. If you're not actual royalty, you've got to be the wittiest to stay on top.
Berowne and Rosaline's increasing attraction to each other exhibits itself in their battles of wits.
The witty successes of Moth and Costard indicate Shakespeare's lack of class prejudice. He believed genius could be found anywhere.