6. They Can be Somewhat Mysterious It can be hard to nail down the personality of a Pisces. Versatility can be a good thing but it can also make it hard to read what a Pisces is thinking and what they want. They have a mysterious sense about them, they are influenced by their surroundings and they can often react in extremes. So Pisces men can be elated one minute and then devastated the next depending on what is happening around him. And their ability to withdraw from reality and embrace a dream world makes them creative and romantic, but also makes their temperament a little hard to interpret.