Well, then just step up to them, have a talk with them ,and get to know them a little. Hey, you can even offer them a drink! You'll quickly notice that people will easily come up to you to have a chat, and that there's noting to feared in this respect... As in any venture, of course, the saying: nothing ventured, nothing gained, applies here as well! So, if you stay glued to your seat for the entire evening, talk or look at nobody, this will be one of the longest evenings of your life! Well... that is... if you're a voyeur, that's probably your 'thing': go for it! We do however advise you to have a chat, do a little dance, and you'll see that this evening will come to be a completely new, very positive experience!