Final answer:
Smiling and welcoming guests is important because it creates a positive and welcoming environment, makes guests feel valued and appreciated, and is a sign of respect and good manners.
Step-by-step explanation:
Smiling and welcoming guests is important because it helps to create a positive and welcoming environment. When we smile and greet guests, it makes them feel valued and appreciated, and it sets a friendly tone for the interaction. In many cultures, hospitality is highly regarded, and welcoming guests with a smile is considered a sign of respect and good manners. It can also make guests feel more comfortable and at ease, which can lead to better communication and a more enjoyable experience for everyone.