A: I bought you a pair of pants. B: Thank you. A: I hope they fit. B: I hope you kept the receipt. A: You think they won't fit? B: I think I've put on some weight. A: You think? B: Maybe a pound or two. A: Maybe four or five pounds? B: My waist is bigger than it was. A: No problem. These pants have an elastic waistband. B: You are so smart!