Be clear. The essential thing is not to mumble so that your speaker doesn’t have to ask you several times. Speak clearly and use concrete and precise sentences. Be friendly. Even on formal occasions, you can behave friendly. A little smile while introducing yourself says that you want to meet new people and that you are a pleasant, friendly person. Be polite. No matter if you introduce yourself to a group of people or one person, you have to behave politely. Being friendly and having a smile is one thing, but telling a joke in a formal meeting is entirely inappropriate. So, when you introduce yourself, we suggest you stand up. You also use body language so that people have a good first impression.