play at your local coffee shop or wherever you get a chance...if your any good people will be interested and spread the word. you can also set up an account on a social site specifically for your band. put your music on there and ask a lot of people to be your friend...again if your any good people will become fans:) good luck
Go to a club around you that plays bands and talk to them..
Out here a popular band (Drop Dead Gorgeous, Brokencyde, Eyes Set To Kill, etc) will play followed by garage like bands... The popular band will bring in the crowd for you guys. :)