<P> After the bride has been given the ring , or at the end of the ceremony ( depending on local custom ) , the groom breaks a glass , crushing it with his right foot , and the guests shout `` Mazel tov ! '' ( `` Congratulations '' ) . At some contemporary weddings , a lightbulb may be substituted because it is thinner and more easily broken , and it makes a louder popping sound . </P>
when do you step on the glass at a jewish wedding
After the bride has been given the ring , or at the end of the ceremony ( depending on local custom )