Watch the A La James: 7 online guitar lesson by Ben Lacy from Two-Hand Groove Guitar
Now I add some brushed chords I think of as a horn part. They are just D-shape F and G chords. I brush up with my index finger on the first one that slides up to G. Then I brush up with my middle finger on the second F.
This is a simple part, but simple parts often make the whole thing funkier.