[Stick out your hand to shake theirs as usual.]
[Just as their hand is about to make contact with yours, gently take hold of their wrist with your other hand.]
[Step round to their side, to look at their hand with them.]
[Point to their hand and say "Look at that hand!"]
As that hand moves closer to your face, you can notice the changing focus of your eyes and the tendency for those eyes to close.
[At the same time as saying "eyes to close", sweep your pointing finger down or just pass your free hand in front of their face, to encourage eye closure.]
And you can go into a deep place of inner resourcefulness and relaxation, knowing exactly what level of trance is needed for you to find those solutions you are looking for.
[Deepen and move to therapy / phenomena as necessary.]