Every time you open your Home Page on LinkedIn, look to the top right corner.
Scroll through the list of people celebrating anniversaries, new job, etc. and give them an electronic pat on the back.
Or better, key in a “hearty congratulations” in a comment.
Or skip it, it’ll come back again the next day and you will get another chance…
But do it. Make someone’s day.
Perhaps you will then “ping” on their radar scope the next time they get wind of an opportunity that makes them think of YOU.