Just to clarify things since I attended the Masquerade Ball last year. Yes there's Waltz, Tango, Swing dance, Etc. There's like so many people out there that are willing to dance with you that you shouldn't feel afraid about. I just taught people how to dance and feel not afraid to approach people at social dances. We're here to have fun. You're welcome to ask a dance from me. Feel free to ask some question regarding ballroom/social dancing.
Cosplay list: Brain Age Guy, Andross (SNES version), Master Hand/Crazy Hand, Colossal Titan with Wall Maria, Tuxedo Totoro
Deviantart ACE Cosplayer