United States

Tipping is customary in the United States; it is standard to leave 18-22 percent in restaurants and provide small gratuities for services like bellhops or taxi drivers.

Americans often value personal space and typically maintain a comfortable distance of about an arm's length when conversing in public settings.

Punctuality is highly valued in both professional and social settings, so it is considered polite to arrive on time for meetings or scheduled events.

Small talk is a common social practice, and you may find that strangers are often friendly and conversational in queues or casual settings.

Using a firm handshake with direct eye contact is the standard way to introduce yourself to someone new in a professional or formal environment.

Always remain aware of your surroundings, especially in crowded tourist areas and major cities, to avoid falling victim to pickpocketing.

In emergency situations, dial 911 immediately to reach police, fire, or medical services from any phone.

Research the specific neighborhoods of your destination in advance, as some areas may be less safe to traverse on foot, particularly at night.

Keep your passport and important travel documents in a secure location such as a hotel safe rather than carrying them around at all times.

When using public transportation, stay alert and keep your belongings close to your body to deter potential theft.