Step 1: Capo
First put capo on 4th fret. If you don't have a capo it sounds just the same.
Step 2: Beginning
First you will play a G chord. If you don't know how to play a G cord look in the images. Strum 4 times and if you don't understand them in the pics ask me in the comments and I will describe them for you. This goes for all the chords in the song.
Step 3: Part 2
Bar the bottom 2 strings and then add 2 fingers at the top 2 strings put them together and strum 2
Step 4: Almost There
Remove the 1 finger at the bottom and strum 2 times
Step 5: Little Bit More
Play a C chord and strum 8 times.
Play an Em chord and strum 8 times again.
Last play a C chord and strum 8 times. Repeat.
Thanks for watching.