Some animals scare easily.
If you strode up to them and put food in their face, despite being desperately hungry they won’t take it. They’re paralyzed with fear at being approached.
It’s important for these animals to feel safe and in control so you have to leave the food out and let them approach it in their own time.
You could say the same for some humans and conversations.
You have to let them come to you.
Thomas Duggan 