Reply To: Fathers and brothers dancing with the Kallah

For the WIY and Myfriend, the Gemora says that a shidduchable-age girl should mekashet herself so that the boys will want to marry her. SJSinNYC is right this time. Look in Ta’anis 13B and the relevant Shulchan Aruch, and the sugya of mitsvos ha’av al ha’ben at the end of perek kama of Kidushin