A Little Faster - There For Tomorrow

i miss the 'tapping' sound (i don't know how you guys call it) in the intro riff he in other tabs. I play it like this eb|--9-2h5-9/12-2-7p5-----| Bb|-----------------------| Gb|-----------------------| Db|-----------------------| X3 Ab|-----------------------| Db|-----------------------| i play the first 9, the 9/12 part and the 7 from the 7p5 part with the indexfinger of my