You CAN use your fingers for this song, but Relient k’s bass player uses a pick.
If you use a pick it is easier to maintain tempo and play it fast enough.
The … means that the note is repeated several times, just listen to the song.
If you know the tune well it is not hard.
intro/verse
————-3…——————————
———3…—-1…————————-
—-3…—————————————
———————————————-
the chorus is the same thing but the rythym and tempo change…
all-in-all this is a pretty easy song. Good luck with the bridge, it is hard to pick out.