It's an Orthodox wedding. At the weddings of Torah observant Jews, you're likely to find guests literally doing cartwheels to entertain the chatan , or groom, and kallah , or bride. At most social occasions, the hosts entertain their guests. The guests have the responsibility of entertaining the bridal couple. It's called misameach chatan v'kallah , meaning make the bride and groom happy.
People go all out at religious weddings.
You don't care about making a fool of yourself because you get to see a smile on the bride's face all night long. And third, men and women are prohibited from touching the opposite sex, aside from a spouse, because physical contact could lead to sexual activity. However, in modern Orthodox settings, the customs may be slightly modified. At a recent wedding at Berkeley's Congregation Beth Israel, for example, men and women danced in separate circles within view of one another. The bride and groom also shared one dance together.