Shouting would encroach on private property.
Shouting as in screaming? That's your first amendment right
Disturbing the peace is the typical charge. In most all US jurisdictions it abridges the 1st amendment.
There are lots of bad laws. Florida has more than its share.
Here's another: Consenting adults having sex is a crime. Apparently it includes such things as licking a boob unless you are a baby and mother.
http://www.flsenate.gov/Laws/Statutes/2012/800.02800.02 Unnatural and lascivious act.
A person who commits any unnatural and lascivious act with another person commits a misdemeanor of the second degree, punishable as provided in s. 775.082 or s. 775.083. A mother's breastfeeding of her baby does not under any circumstance violate this section.