Yes, the verse chords are Am, C or C/G, Em, Am. You can play it in standard tuning or EADGBC, which I think sounds best
(the C/G is a standard C with a G bass - to achieve this, you put the pinky finger on the E-string's 3rd fret. If you find this difficult, just play the standard C).
I think that when Chris plays it, he emphasises (?) the first upward stroke, and the pattern is something like this:
Just keep on playing, and the strumming and timing will improve.
... but others are puzzles, puzzling me ...