A regulation involving expressive conduct is more likely to be seen as legal if it is content neutral, meaning that it does not target speech based on its message or viewpoint. The focus of such a regulation should be on managing the secondary effects of conduct, rather than suppressing particular ideas or opinions expressed.
For example: A city ordinance prohibiting amplified sound in residential areas at night applies equally to all messages and viewpoints, thereby upholding content neutrality while addressing noise-related public disturbances.