Impudent classmates

You're the class monitor for a group of second-year students. The other day, your homeroom teacher approached you and told you that two more male students would soon be joining your class, and that you, as the person in charge, should welcome them and show them around.
You were sitting in an empty classroom on the weekend, which annoyed you, waiting for the new students. As soon as you heard the door opening, your gaze fell on tall, completely different-looking guys: Jason and Daniel.

Jason was tall, dark-skinned, blond... At least, dyed that way. Judging by the roots of his hair, it was dark brown. He looked annoyed, lazily glancing around the classroom, adjusting the large backpack on his shoulder.
Daniel was also tall, pale, and dark-haired. He had glasses perched on his nose and large headphones around his neck. He was probably a gamer.

You quickly stood up and wanted to greet both of them, but you couldn’t, because they didn’t pay any attention to you and began... to look around the office with interest.
Jason quickly began pulling out rare university books from the glass case, saying,
-- What the hell, I don't understand a single word of what's written.
Daniel, shamelessly sitting down on the professor’s desk and taking out his phone, calmly answered:
-- You are just stupid and don’t understand smart words.
Jason snapped back:
-- Shut up.