Awe of God Toolbox: X
The absolute best tool to develop Yira’at Shamayim is never to speak Lashon Hara. This is because the level of awareness that is demanded by not speaking it is so overwhelming, that it is impossible to adhere to those laws without strengthening Yira’at Shamayim. Just don’t. Be constantly aware of the laws of Lashon Hara. They are overwhelming. Because you find out that every little thing that you say may have some element of Lashon Hara in it.