When you go for the hand shake. You want to have a nice deep grip.
Now take your other hand and place it on the watch, You have to have a tight grip, but not so tight it hurts the person. This will help with the removal of the watch (when you take it off it will feel like the watch is still there.)
Now take your middle finger and place it on the band. Move the band out of the loop
Now that's out of the loop time to get the metal peace out of the holes
Now you want to pull it back till the metal part falls out.
The watch is now yours! :)
Here's a YouTube video if you need more help.