[header] How to get a girlfriend as a nerd [title] Act confident. [step] You don't have to be confident but you do have to act confident. This will make people, girls included, take you seriously. 
Also, as we discuss below, girls think confidence is super attractive. Why would she want to like you if you don't like yourself very much? [substeps] However, don't be that guy that thinks he can do no wrong and that every word out of his mouth is a new book of the bible.