What cultural faux pas should I try to avoid making in Puerto Vallarta?

"When traveling in Puerto Vallarta it is important to be mindful and respectful of local culture and customs. Specifically, visitors should try to avoid wearing revealing clothing in public places, particularly when visiting religious sites. It is also important to acknowledge the traditional beliefs and practices of the local population by avoiding topics such as religion and politics and refraining from disrespectful gestures and jokes. Additionally, locals are proud of their culture and food, so it is important to be respectful when trying local dishes. When interacting with locals, be sure to greet them with a friendly smile and an appropriate greeting such as a “Buenos Días.” Finally, visitors should respect the area’s historical landmarks and traditions when visiting the city," mentioned another expat when asked about moving to Puerto Vallarta, Mexico.