James just got a promotion, so he invites his co-worker to go out for some drinks.  | 
 | Hey Zach, are you doing anything after work?  | 
 | Not really. I'm just going to walk home and watch a movie or something.  | 
 | Perfect! What do you say we go out for some drinks instead? I'm buying. I finally got that promotion I’ve been waiting for.  | 
 | Nice! Congratulations, man!  It was about time. Now, that's something to drink for.  | 
 | It sure is! How about we go to that pub around the corner?  | 
 |  | 
Several hours later, Zach and James are in the pub.  They see their co-worker, Jessica, in front of the pub.  | 
 | Hey, Jessica! Come on in! Why don't you join us for a drink? It’s my treat.  | 
 | Are you guys celebrating something?  | 
 | As a matter of fact, we are. I got promoted! Come on, what are you drinking?  | 
 | Wow, congratulations, James! Okay, I could have one beer, I guess.  | 
 | Waiter, one beer, please! Put it on my tab. And another round for the two of us.  | 
A couple of hours later.  | 
 | It's getting late. We should probably get going.  | 
 | Yeah, you're right. I'll just go foot the bill.  | 
 | No, I can't let you pay the whole bill, let's go Dutch.   | 
 | No way, it's on me. When you get promoted, you'll pay.  | 
 |  |