Good trades leap off the chart. They are clear trend trading opportunities, or clear trend breakout opportunities. Specialist trades, such as parabolic trends, are most easily seen when we look at the chart.
Eyeballing makes use of the ability to use experience and summarize a chart in the blink of an eye. This experience comes from looking at many charts every day. At first this appears to be a time consuming process, but with practice, it is a fast and efficient way to find clear simple, profitable trading opportunities.
We train ourselves to apply this technique by looking closely at the chart every time we have cause to look at a stock for any reason. In time you will learn to recognize clear trends, and clear chart patterns. This is an important trading skill.
Eyeballing remains one of the quickest and most effective ways to find profitable trading opportunities.