Ranger merfs and flinches a little as the note lands near him, and he slowly takes it in his hand and, making sure the instructor wasn't looking, opened it up and gave it a read. He slowly looked around the room for where it came from, soon spotting the human and smiling a little. He lifted his hand and stuck up his thumb, his cheek scales glowing a little in a faint blush before he packed the note away, just in time for the class bell to ring.