To communicate with your spirit guide, the first thing that you should do is get in the habit of listening to yourself, and that requires concentration. You can also purchase a pendulum if you prefer, but be cautious about choosing one made up of stones. It is better to choose one that is made of brass or other metals. Stones have their own energy which might interfere with clear movement. Sit at a table or have a flat surface on your lap.
Holding your pendulum still in front of you, ask your spirit messenger to indicate a “yes” for you and notice the movement of the pendulum. Gently tap the pendulum on the surface in front of you and say “thank you”. Do the same process again for “Yes” and “I don’t know, or wouldn’t want to say at this time”.
All information must come through your higher self. Even when trying to talk to your spirit guides, the answers will still come through you. The best way to get in the habit of getting information from your spirit guide is to practice asking them to yourself.