#Person1#: Can I help you, sir? 
#Person2#: Yes, I've been sitting here for a few minutes. I'm waiting for someone to put gas in my car. 
#Person1#: I'm sorry, sir. But this is the self-service pump. 
#Person2#: Self-service? 
#Person1#: Yes. You must fill up the car yourself. 
#Person2#: Are you serious? 
#Person1#: Yes. Are you traveling here? 
#Person2#: Yes, I'm from Taiwan. I never heard of a gas station where you fill up your own car. 
#Person1#: In America, most gas stations are like this. 
#Person2#: Do I really have to do it? I don't know how. 
#Person1#: Well, since this is your first time, I will do it for you. But next time, if you want a full-service gas station, you should look at the sign. 
#Person2#: What sign? 
#Person1#: Under the sign for the gas station, there will be a smaller sign that says Self-Serve or Full-Service. And some gas stations have both. But if they have both, some pumps will be self-serve and some will be full-serve. You have to look at the signs. 
#Person2#: I see. 
#Person2# doesn't know how to fill up the car with a self-service pump. #Person1# will do it for him and asks him to look at the signs next time.
gas station