Define your skills
Recruiters use LinkedIn to search for potential candidates. Like a good question, the more specific you are with search terms the better the results. For candidates to show up in the search results, adding specific roles and skills to your LinkedIn profile will put you higher up on these search results. Take the time to list your main skills and be specific about industry terms and you will come out on top!
Recommendations
Getting a recommendation from past colleagues and employers can give a recruiter the confidence needed to put you forward for a position.
Photos
Adding a LinkedIn profile photo will help recruiters verify your profile. It is one of may criteria checked to make sure someone is who they say they are. The type of photo is very important too. There is no need for a professional photo shoot. All you need is a camera phone, a white wall to stand against and some smart clothing. Taking the photo near a window with good natural light will work wonders. The attention to detail and effort put in will convey a positive image to potential employers and recruiters.