I have an appointment with a colleague tonight to pick up some items.
On my way to meet a colleague, I saw a security guard exercising there.
Normally, I don't greet strangers.
But I've made it a habit to practice my mother's language of love and greetings.
When we met face-to-face, I greeted him naturally. 
After taking the items from a colleague and preparing to leave,
The security guard called me over and said my phone had fallen.
Looking back, I realized my phone had fallen to the ground without me even noticing. 
If he hadn't told me, I probably would have just gone home.
But when I come back, I don't know if my phone will still be there.
Even though it was just a small greeting, I felt I received warm love in return through that greeting. 