Change the given pronouns if needed to make grammatically correct sentences

Last weekend [ ] friend and [ ] went shopping at the shopping centre. We went to a jewellery department to look at some earrings for Megan. She was talking to a shop assistant who showed [ ] some jewellery. At the same time I was looking at [ ] in the mirror when I saw two men trying to steal a ring. I screamed at [ ]. [ ] reaction was predictable: they dropped the jewellery and ran away. Unfortunately, the shop's security couldn't get them but at least [ ] jewellery was fine.The staff thanked [ ], and we were really happy that we could stop a crime [ ].