I was just hearing a testimony about a Christian starting a new job in a small company and the owner told him never to talk about his faith unless asked. He agreed. After a while someone did come and asked: "There's something different about you, what is it that you have? I want that". He answered I have "Shalom". This actually piqued the coworker's curiosity.What the unbeliever is seeking (we hope) is God. Yet that truth is first evidenced not by our words alone, but by the example we set in how we treat one another
Shalom means friendship, contentment, security, and health; prosperity, abundance, tranquility, harmony with nature, and even salvation. And it means these things for everyone, not only a select few. Shalom is ultimately a blessing, a gift from God. It is not a human endeavor. Source
He told his coworker that belief in Jesus gives him that special peace not of this world. John 14:27
We believers need to exude shalom in order to bear fruit. Sadly I still need lots of the Holy Spirit's help to exude shalom.