Maybe you see are really attractive person, a beautiful sunset, or a great song.
When doing 'the matrix' we call these events "hooks."
Sometimes the hook hangs in there for several minutes, hours or even days. Heck, I still get hooked when I think about how I was wrongly accused and then punished by my kindergarten teacher.
If you are like most people, there are plenty of hooks in your life. A great 'Noticing' exercise is to notice when you get hooked, and then notice what you do next.
Most people notice the tension of the hook (a bit above the "me noticing" circle). Some notice the hook more in the mental realm (a bit below the 'me noticing' circle). Either way it's a hook. Notice the hook and what you do next.
The more hooks you catch, the more you notice.
Kevin L. Polk, Ph.D.
ACT Training and Consulting