Well Tom, I just looked at the tab and it's just as it says: hang on the E until the verse is sung, then it's a quick "bum bum" on the next 2 chords. I'd imagine if you throw in a show and just sit there for a minute or 7 listening and practicing, you'll get it. Good luck.
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"We must embrace pain and burn it as fuel for our journey" - Japanese poet Kenji Miyazawa