Basically act like your an object at your house that misses you when your gone. For example Your pillow misses you when you leave. It’s deeply sadden when your gone and misses your smell and touch. When you leave the pillow gets cold and is lonely. When you get home and lay down on the pillow the wave of warmth and happiness of the pillow is thought the roof.
In an argument, you're trying to convince the reader to agree with you. A show of emotion or being emotional shows that you believe in and/or passionate about your topic.