What makes something persuasive

There are many different strategies or tactics to making something persuasive. Depending on the topic or thing you want to persuade the reader/people about you may use different things. For example if you want a reader/spectator to feel sad about something, you might use sad pictures, videos or other "moving things". Voice is also a very important element, if you want people to pay close attention you may take softly and slowly, or if you are excited you might speak rapidly and exaggerating words or phrases. Also the colors of  what your presenting you might want to make something to draw attention or stand out by using bright colors. Adding music can effect the mood, sad song-sad happy song-happy! These are some thing that I think play a big part in making something persuasive or persuade you.