I met Paul once at a booksigning in New York, where I also got his autograph. I had to wait in line for 33 hours but it was worth it, al 8 seconds
I twice did a high five with him, waiting at the artist entrance of a venue.
First time (Madison Square Garden) was with my right hand, the second time (Millenium Stadium, Cardiff) was with my left hand
And I once got very close.... being backstage for an interview that unfortunatelly did not happen. But we met the 2003 band, got autographs AND we got to listen to the soundcheck!