I love to share creative ways "in" to awareness of our own bodies. Placing a finger on the crown of your head reminded me of a fun technique I picked up from Marianne Ryan's "BABY BOD" book:
"Gently pull ONE HAIR from the crown of your head. Don’t tug or pull it out! All you have to do is to gently pull upwards and imagine that it is pulling up your spine. You should feel as if your spine is being gently lifted through the middle of your pelvis."
It always makes people laugh - it's fun and playful.