The human form is close to 70% water. Vibration travels through it easily and thoroughly. We make all sorts of sounds that express how we feel. Squeals of excitement, sighs of fatigue, groans of discomfort etc..
Recall wordless sounds that you make when soothing or comforting a child or a beloved animal. Maybe there is a tune that you like to hum?
Hum the harmonic scale-Do Re MI Fa Sol La Ti Do. Whatever the wordless sound, spend a few minutes making it and paying close attention to the sensations in the body the vibration creates.
This can train to observe inner body sensing, an important aspect of self-regulation that promotes resilience.