The video that inspired this idea is this one, as you can see the spinning top could replicate that of a ballerina. With the addition of a few more spinning tops, it could replicate a ballet performance.
With this idea in mind Phil mentioned the performance could be a 'pas de deux' (French for step/dance for two) which means a duet in which ballet steps are performed together. This dance is performed using a male and female ballet dancer, which usually consists of; an entree (an opening performance for a grand pas defined as big or large step) an adagio (slow enfolding movements) two variations (a solo dance, one for each dancer) and a coda (a passage which brings movement to conclusion, usually brings all dancers on stage).
To define the different sex between the spinning top i would use different styles of spinning tops, a more elegant wider spinning top to replicate the dress for the female, and taller more masculine looking one for the male. I could also use different colours to replicate the sex, for example pink for the female and blue for the male.