Hi Chio, what I ment is this:
ALWAYS move the planchette to GOOD BYE when you're done talking. Otherwise, the spirits can and probably will inhabit your house freely and you would have trouble.
When you say goodbye, PUT THE BOARD AWAY. I say this because leaving the board out can invite more spirits to enter, even if you do say goodbye because once you say "Hello", the "door" to the other world is nearly impossible to close. So when you say goodbye, stick to it and leave the board alone. Also turn the board facedown.
Hope that helped. Romana