It's good to offer to pay for someone's ride.
John and Jim shared a taxi from work to the subway station when the taxi driver turns to ask for the 20 dollar fare.
John wants to respond to the taxi driver's body gesture.
John pulls out a twenty and tells the taxi driver that he's got the whole fare covered.
John pulls out a ten and gives it to the taxi driver to pay for his half of the fare.
Jim is delighted at the surprise gift from his coworker and vows to repay the gesture in the future.
Jim thinks it is fine that he has to pay his half but is not impressed by John or happy about anything.