Replace the 3rd of a chord with a 2nd or 4th. Instead of C-E-G, play C-D-G (Csus2). Instead of G-B-D, play G-C-D (Gsus4). This adds "longing" and tension.
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When using these chord progressions, keep in mind: Replace the 3rd of a chord with a 2nd or 4th
Progression #201 is "C - Am - F - G." If you play it as quarter notes, it sounds like a nursery rhyme. Play it with a syncopated, reggae-style "off beat" (skank), and it becomes entirely new music. play C-D-G (Csus2). Instead of G-B-D