Here's some nice simple rolling backup. There's a few concepts to glean from this arrangement. First, we are hitting the downbeat of each measure with a single eighth note. This helps us establish a strong rhythmic foundation. That eighth note is followed by a bit of a forward roll to get that quintessential rolling backup sound. After that, we have an eighth note and a pinch to help again with solid rhythm and it also sets up a two note walk. These short walks help lead the ears of players and listeners through the chord changes. We'll keep that pattern until measure 7. At that point we'll use a forward backward roll. This helps distinguish the end of the chord progression from the rest. Lastly, we'll end with a simplified Scruggs style ending lick and some pinches. Check out the licks to find some cool variations and embellishments for all of this.
This tune is often played in Bb or A, so you'd need to capo at the 3rd or 2nd fret to achieve that. For basic practice or when playing by yourself you can just practice without a capo.