So I went to a marriage ceremony and I was sweating with anxiety. Had my eyes on my phone all the time. It was brutal but it time passed.
I saw Jordan Peterson's talk about anxiety. He talked about several aspects such as the spot light is not on and how you shouldn't put your head down when you are anxious. The later touched my heart. 
He said you think everyone is noticing you and the whole situation is a monster ready to eat you so you give up and put your head down (look down) but no you can't escape the situation like this. You have to keep your head up and look at the situation/people/(the monster) which is the cause giving you anxiety. That's the only way you can stay up-to-date with your current environment and that's you deal with it in a better way.
I tried dying it and on the first try it worked. I literally looked at their faces, kept my head up and it worked! I do this everytime I get anxious now and it has helped me so much.
Thanks for reading I hope it works for you too! ♥