Meeting guys through friends

I'm a 27 year old that has always been single her whole life.

I'm quite shy around loud/extroverted people. Two of my friends are getting married and one is a really extroverted guy. This guy friend says he is going to introduce me to his single friends at his wedding. The more shy girl friend (couple getting married) agrees.

The thing is ... The guy always introduces me as "Hey this is my single friend X. And X this is Y. Talk and meet". And I always feel awkward and never know what to say

Also one aunt of mine is also at this wedding (small world) and also likes to be a match maker which will make it more awkward.

I know I should be meeting guys so do you have any tips?

How would you act and what would you say?