To enable the #OpenToWork feature:
Click the Me icon at the top of your LinkedIn homepage.
Click View profile.
Click the Add profile section button to the right of your profile photo.
Click Looking for job opportunities.
Provide the requested information in the pop-up window that appears. You can choose whether all LinkedIn members or only recruiters can see that you’re open to job opportunities. If you choose to share with all LinkedIn members, we’ll add an #OpenToWork photo frame to your profile photo. Choose carefully!
Click Add to Profile.