Social networking always starts with the profile. This is your chance to tell others who you are, what you do and what value you add to the world. It's where other social media bods will go to gather more information about you and to determine if you are are, in fact, who you say you are in practice. The perfect social media profile for LinkedIn has five different elements: the photograph, the headline, the summary, your contact details and of course some activity on LinkedIn itself.