As used in §§ 13-53-49 13-53-50 to 13-53-53, inclusive: (1) "Expressive activity," protected under the provisions of §§ 13-53-49 to 13-53-53, inclusive, includes any lawful noncommercial verbal or written means by which one person communicates ideas to another, and includes peaceful assembly, protests, speeches, distribution of literature, the carrying of signs, and the circulation of petitions; and 24 (2) "Intellectual diversity," denotes a learning environment that exposes students to and encourages exploration of a variety of ideological and political perspectives. Neither the term "expressive activity" nor the term "intellectual diversity" may be construed to include content that is lewd or lascivious, as defined in section 1 of this Act.