The context of the following conversation is Lee got a soda after their shift was over for their friend who was still working on the floor using their friend's money.:
Lee says I just got my friend a soda after I finished my shift..
The friend responds That's very generous of you..
Lee responds I used my friends money so it didn't cost me anything..
The friend responds Why did you get them a soda?..
Lee responds They were still working so couldn't get it themselves..
The friend responds That's still a nice gesture..