catch the eyes of speakers'

when you are in a crowded place and want to the speaker to notice you, then you have to do something to catch his or her eyes. but how to catch the eyes of the speaker? the first thing is that you should be outstanding to let people know you are here, and then you should be mysterious that people would want to know more about you, and then the speaker would pay more attention on you.
then, what kind of thing will get this result? let's check the picture above at first, did you see the red boy? altough there are not much people here, but as you can see that the speaker is totally attracted by the red boy. and this is all because of his red spandex zentai suit.
i am sure that many people are curious about who he is, right? we can not see his face at all. so, we would have many questions that we want to ask him. and then, this is the red boy's secret to catch the eyes of speakers'. if you need it, you can give it a try.