For example, it´s likely that you are not going to be asked for your ID card!
If you follow these easy steps, you are going to be able to enter a Viennese clubbing for sure, even if you´re underage!
When you go with a big crowd, the security guys will most likely only check the first three or four people!
After that they´ll realize that a crowd of 15 people means they´ll earn lots of money :P.
Also, ask some people where they go to school/university and try to keep in mind the easiest name for if a security guy asks you (It doesn´t happen often, but it does occur every now and then).
You might think this question is easily answered, but in a stress situation you will freak out, really!
Therefore you need to think about it before you go to the club and really believe you are over eighteen.
It´s going to be too late when a security guy asks you. You won´t have enough time to spontaneously say what year you were born.
Remember that you might come across more convincingly if you say you are 19.
Next, find your favourite push-up bra and get some sexy clothes.
But please be careful not to look like a slut ;).
If you are male, just try to look like a swag dude and give your best!
It´s not like I´ve ever done that, but it did work for many people I know ;p
Scan your pass port and edit your birth date with Photoshop.
When you enter the club and they ask you to prove you are 18, pretend you are a tourist from Germany and say that therefore you´ve only got a copy of your pass port.
But as I said, don´t do this on a regular basis. Because if you do, you will likely be down on your luck some day!