Party Venue Choice
Venue choice is very important. One of the most important factors in venue choice is choosing a venue that is not too big and that will keep your guests together.
Massive venues with a small number of people is the easiest way to kill that party energy and atmosphere. Small venues or house parties can work a lot better. They instantly add atmosphere with little effort from you. It is always better to have a venue that is a bit too small than one that is too big. However, house parties can also be difficult if your guests are separated into many different areas.
Don't make the mistake of over estimating how many people will come to your party. Unless you have confirmed RSVP's from your guests, rule of thumb is count on about 60% of your invited number showing up.
Make sure that you keep your guests together and try not to choose venues with more than one or two rooms. It is always good to have a small chill out room for older guests but separating your guests too much will also make it hard to create a great energy. If you have a lot of smokers at your party, you can lose half your guests to the smokers area. This is always hard to control but can be ok if the smokers area is not too far away from where the party is happening. Create a great party atmosphere and your smoking guests will want to get back to where the action is.