northern downpour - panic at the disco

im kinda noob at guitar
i know a few songs
but im more of a vocalist and a drummer

but i really wanna learn this
can some one give me a hand

just think in your head "ta ta ta tiki ta ta ta" yes it is weird, but i cant put it in notation.
Down Down Down Up, I think

But on the first 2 downstrokes he only strikes the bass notes (thickest strings(s) ) I think.

Atleast that's the best I can make out of it
i can play this, its all down but on the third down, andd a bit more power, ull getthe result u wnat i had this problem when learning it aswell