To help the right people find you on LinkedIn, optimize your profile. Add keywords a potential new client might use when seeking out someone with the products or services you provide.
Include the best keywords in the title and summary sections of your profile to ensure you show up in search results. Caveat: You will show up only in search results for people in your network, including first, second, and third level connections.
Source: Social Media Examiner, 9/30/13