Instructions
Although it sounds harsh to say, be careful to only invite your more academically inclined friends. Sometimes a weak player can bring down a whole team and most likely will not have too much fun herself.
If hosting the game night at your home, make sure it is centrally located. If it is out of the way for your guests, then make sure to start the night early.
Choose one or two games that you will be playing. Do not leave it up to the masses, because everyone will have his own opinion, which could get frustrating.
Spell everything out for your guests: time, location, date, what you will be playing and if they need to bring anything. Follow up a day or so before to confirm everyone.
Have snacks and drinks readily available and have fun!