New Delhi, Aug. 16 -- A new optical illusion personality test is helping people discover what others notice about them when they first meet. Based on the famous illusion paintings of Ukrainian artist Oleg Shuplyak, the test asks viewers to focus on the first object they spot in a painting. Experts say the object that catches your eye within five seconds can reveal how people perceive you.

Optical illusions are known to trick the brain and eyes, and this test uses that principle to uncover aspects of personality and first impressions. "The object you see within 5 seconds is the thing that reveals how people see you," the test explains.

If you spot the horse first, the test suggests that people notice your intense eye contact. "They might...