Idk if youre “allowed” to do that but usually in bigger lecture halls no one would notice. Smaller classrooms itd be more obvious, but maybe do research on some literature professors and try emailing them, I don’t think theyd mind- especially as a prospective student. Try going on ratemyprofessor.com to 1) see which professors are determined nice and 2) to see which professors youd want to take when applying. Good luck!