Your profile picture is your calling card on LinkedIn – it’s how people are introduced to you and (visual beings that we are) it governs their impressions from the start.
Some quick tips to start with: make sure the picture is recent and looks like you, make up your face takes up around 60% of it (long-distance shots don’t stand out), wear what you would like to wear to work, and smile with your eyes!
Here are the steps to change your profile picture