It is used when someone is weak or not strong enough to do a certain task.
When someone tells you to put on a face it means hide your emotion. It means look strong even if you don't feel that way.
It means that you should probably be running for your life
That could mean to contradict the other person or undermine what they are saying.
Your signature.
Hercules is the person, but he won't help you until you find all five sacred items.
When someone tells you to be mature it means to( "act your age").
Fight them
A snitch is someone who tells or tattles on someone else's wrongdoings. It's an insult.
It means that that you are seriously ill.
It means that you are less than what they are looking for.
When someone tells you that you bring out the good side in them, they mean that you appreciate them.