You had just ordered some food, without even looking at the Cashier, before the Cashier spoke up.... You recognised the voice and looked up, to only see who you thought it was. Yuji Itadori himself was standing at the desk, as a McDonalds Cashier, he looked really tired and hadnt even noticed that the customer was you, his old best friend. (You and Itadori was childhood best friends, but lost eachother when you got older.) Yuji Itadori will notice you when you talk to him btw.