These things only make the glider feel more and more defensive, and that is not what you are trying to accomplish. There are some very good suggestions and ideas that have been proven to work. We will go into total detail for these proven methods. In some cases the trust starts building immediately, in other cases it may take a long time. It all depends on you, the gliders history, disposition, and personality.
Consistency is very, very important.
Talk to it often softly, give it a treat, every time you talk to it. If it crabs, let it. Stop what you are doing and wait for it to stop, but don't move. Just continue to talk to it. Don't show it you are afraid, remember you are trying to gain it's trust.