I'm Fine.
"I'm Fine", is the immediate response from people struggling and needing help. If someone you know tells you that they mean they don't want to talk about it but need you to be there for them. Because depression is most dangerous when you have no support and you are unwilling to ask for help. "F" falling, "I" insecure "N" not good enough "E" empty.
What they say:
Person A : Are you ok?
Person B : I'm Fine.
Person C : Are you sure?
Person B : I said I'm Fine!

What they mean:
Person A : You look sad how do you feel?
Person B : I've been falling lately and have thought about suicide often, help me.
Person C : I'm here for you mate.
Person B : I wish I could speak to you about it.