Who does Rosie show how to load an Uzi?  Answer the above question based on the context below:  The film opens with two small-time crooks Tommy Uva and Rosie DeToma getting high and robbing a florist on Valentine's Day. Tommy holds up the cashier with a pistol while Rosie waited in the car she inherited from her father. Tommy is arrested and sent to prison for 18 months. In the meantime, Rosie gets a job at a debt collection agency run by Dave Lovell, who went to jail for bilking major companies out of $800,000 through fraudulent invoices. Lovell reformed his life and mainly hires ex-cons at his firm. He is happy to give Tommy a job and a second chance. Tommy is restless and instead of following the call script, he often counsels people on how to defraud Lovell's company. When Tommy sees some mafiosos in his neighborhood, he grows enraged. He calls them fat old guys living off their reputation, and he resents the way the mafia treated his father. Over the course of the film, it is revealed that Tommy's father started his shop with a mafia loan, and he suffered frequent beatings when he was late with payments. Tommy's mother and brother still run the shop, but his mother blames Tommy's criminal activity for breaking her husband's heart and leading to his death. Whereas, Tommy blames his father's death completely on the humiliation he suffered at the hands of the mafia. Tommy skips work one day to attend the trial of John Gotti. He watches Sammy the Bull's testimony, and he perks up when Sammy explains that no guns are allowed in mafia social clubs. He cases one of the clubs that Sammy mentioned, and then he pitches the idea to rob the club to Rosie. He explains that it will be safe since no one will have a gun, and that the mafia would never call the cops to report the crime. He gets an Uzi, which he does not know how to use. Rosie reluctantly shows him how to load it, and agrees to the plan.
Tommy