The greeting "Hello" is widely accepted as a common, neutral and respectful way to introduce yourself when meeting someone for the first time. It is a simple acknowledgement that starts the interaction and can be combined with basic information such as your name to create a more formal introduction. Other options like "Nice to meet you" or "How do you do?" may also be used, depending on the context of the interaction. It is important to maintain a polite, friendly and professional attitude when introducing yourself to someone new.