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

"In Puerto Rico, it is considered rude to interrupt someone while they are speaking. Always wait for your turn to speak. Avoid discussing sensitive topics such as politics, religion, and personal finances unless you are very close with the person. It is considered impolite to arrive on time for social events. Arriving 15 to 30 minutes late is the norm and is considered respectful. Do not refuse food or drink offered to you as it can be seen as disrespectful. If you have dietary restrictions, explain them politely. Avoid using the "OK" hand gesture as it is considered vulgar in Ecuador. Do not point at people or things with your finger, it is considered rude. Instead, use your whole hand to gesture. Avoid wearing revealing clothing, especially in rural areas and religious sites, as it is considered disrespectful. Do not litter. Ecuadorians take pride in their environment and littering is frowned upon. Avoid making negative comments about the country or its people. This is considered highly disrespectful. Do not rush conversations or transactions. Ecuadorians value personal relationships and may see this as a sign of disrespect. Avoid public displays of affection, especially in rural areas, as it is considered inappropriate. Do not raise your voice or show anger in public. It is considered very rude and can cause unnecessary tension. Avoid touching, hugging, or kissing someone you just met. Personal space is highly valued in Ecuador," said another expat in Puerto Rico, Ecuador.