Blues songwriting builds on a familiar harmonic progression (I-I-I-I-IV-IV-I-I-V-IV-I-I) and makes lyric creations easy as well. Call and response and repetition can make a simple idea sound complete.
State Your Name Play 12-bar blues progression and establish rapport, i.e., ask each individual how they are currently feeling during the progression (Silverman, 2010).
Silverman, Michael J. (July, 2010). The effect of lyric analysis intervention on withdrawal symptoms and locus of control in patients on a detoxification unit: A randomized effectiveness study. The Arts in Psychotherapy, 37(3),197-201.
Music Therapy St. Pete, LLC wrote about this topic on their Rhythm & Reason Blog; the post is available here: https://rhythmreason.com/simple-blues-songwriting/