When Andy turned to look at Frosiien her lips collided with his. He blinked and he returned the smile when she smiled at him. "Cold? I don't know yet." He gently took her by the shoulders and kissed her again. 
He heard some voices behind them, but he didn't really listen to it. 
"Yep, they are cold," he said once he stepped back again and he winked. "As a scientist, I can't conclude anything unless the first result is replicated in a second test."

Michael watched it happen and then looked at the angry Mitch. His uncle was either ignoring him, or didn't understand him. He shook his head at his uncle's explanation for the second kiss. 

Mindy turned to Gavin and paused. "A train is a vehicle used for transportation. It runs on tracks and usually big cities have stations where it can stop and people can get on and off." She figured he probably didn't know about the train-dilemma either. "You see, in ethics they have a dilemma: a train approaches a switch in the tracks and you can't stop the train, going to the right there is one person tied on the track who will die if the train runs over him, on the right track are five people tied up. So you have to decide which track you will go on: will you kill one person or the group of five? We debated that for an hour in professor Bansing's class."