Basic Etiquette
People frequently use the words "please" and "thank you." For instance, the majority of people will thank the bus driver upon getting off. Irish people typically wait in line before being served. It's customary to shake hands with persons you just met and with them again as you leave a social gathering.
It is considered polite to give other drivers a chance to pass when driving in rural areas. To do this, lift your hand or finger from the steering wheel. The Irish typically say "bye" more than once before hanging up the phone while finishing a phone call. Saying "bye" just once and hanging up right away to finish the call is considered disrespectful.
It is impolite to wear your hat inside a house, a church, or a bar. It is usually acceptable to show up 15 minutes later than the scheduled time because Irish people are often rather flexible with their time. That being said, avoid being late if it puts your Irish counterpart in a compromising situation.