How do you feel when you're meeting a group of new people? How prepared are you to introduce yourself?

In a new group, people are often asked to introduce themselves. Sometimes they give you a special question to answer, to help in the introduction. Sometimes you are asked to provide your background as it relates to the purpose of the group. Are you a long talker, excited to add lots of details, or do you hold back, and provide the minimum? How does it feel to be “on the spot?” How do you react to the attention?