Q: Passage: 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.

Question: Based on this passage, when do you break glass at a jewish wedding? Let's give stream of consciousness first:
This is the relevant information: 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!" Therefore, the final answer is After the bride has been given the ring , or at the end of the ceremony ( depending on local custom ).