Thank s for the pendulum pic.. will add it my collection of other charts I use for SRT/SEC  (Spiritual Healing)  always looking for clean looking pics instead of my hand drawn ones......
have added some info on how to use a pendulum keeping it simple in Pendulum thread.......
I find it easier to draw a circle making yes go back and forwards + and no side to side - and a working, clearing or apply healing movement is a Circle either clockwise or counter clockwise depending on what you are doing......
Hope these suggestions help..... it is really important to discover what you find most comfortable and gives you clarity.........

I think you can start practising with some test-questions, like is grass red? And other questions of what you know the answers are.
I am learning to use my pendulum this way. And you have to practise very regularly with it to get good results. Good luck with it.