Yes stepping out and saying high to a stranger is scary. I have this overwhelming urge to say hi to as many as I can.
Extreme you might think but hay is loving God and what his son done for us, not.
We are suppose to be his children so Jesus is our brother yes or no? It says in John 4 12 “Most assuredly, I say to you, he who believes in Me, the works that I do he will do also; and greater works than these he will do, because I go to My Father.”
If you feel the urge then pray ask God to show you through his eyes who to approach. You don’t have to be over the top, Jesus always did things gently and quietly.
I challenge you to go out to and say to a complete stranger “God is in a good mood and he thinks your awesome”. I have taken these words and started. Simple you say, well why not, why do we over think things.
Just cross the chicken line and do it.