Review my startup but with a twist. read first.
What is the main slogan? See where like-minded people will hang out tonight within 30km of your location - in this case, see where hacker news hackers will be hanging out tonight
What do you have to do? Even if you are not going out tonight, sign in and click 'here later' to a bar/office near you using the desktop or mobile website.
Start here: http://www.likeourselves.com/groups/hacker-news-hackers-1222013
You get to see where other reviewers are near you, where they are hanging out tonight, chat online before you even go there and maybe even make a few new friends :)
Finally, you can create a group for your own startup customers to meet each other and for you to meet them. See the demo: http://www.likeourselves.com/demo/
Why does this startup exist? We wanted the option of hanging out and meeting different types of people whenever we wanted rather than wait for events next week/month. If only 100 people across the city want to meet up tonight to drink tequila... this is the way to do it.