Praying that Jesus will reveal himself to you. Once you have heard that voice, you will always know it!
"My sheep hear my voice, and I know them, and they follow me. [SUP]28 [/SUP]I give them eternal life, and they will never perish, and no one will snatch them out of my hand." John 10:27-28
My practical suggestion is to read the Bible - start in the book of John. I did that, and God met me and saved me!