Just find this someone by any means, click on his/her name (it will take you to his/her profile) and click green button "Add xxx as friend"

easy as pie! Here I'll add you!

click the interesting plurkers button, then use the tabs....i just found you that way HI!

I found you on Interesting Plurkers, too!

if Stacie68 has given up

You can also look for plurkers who respond to your plurks. It shows they're interested!

that works too drdollars