In the rapidly evolving world of trading, day trading is a popular choice. Day trading involves trading financial instruments within a single trading day.

The appeal of day trading lies in the potential to gain substantial returns in a here short time. Even so, it's vital to understand that this form of trading holds its own set of risks.

Sound day trading requires a robust understanding of the stock market. It's vital to stay abreast of market news, fully knowing how various events may impact the price of stocks you’re interested in.

Moreover, proper day traders embrace the mitigation of risk. This involves placing stop loss orders to limit potential losses and just investing capital that you can afford to lose.

A key aspect of day trading is the ability to act swiftly. The markets can change quickly, and being able to make informed decisions on the fly can lead to successful trades.

One of the most beneficial day trading techniques is known as ‘scalping’. This involves making multiple trades rapidly, hoping to reap benefits from small price movements.

Moreover, ‘momentum trading’ is another frequently used technique. This strategy involves purchasing stocks that are rapidly increasing in price and selling them before the trend reverses.

Day trading is not for everyone. It requires a high degree of investment knowledge, quick-thinking abilities, and a tolerance for risk. However, with the right knowledge, technique, and control, you can turn day trading into a profitable venture.

In conclusion, day trading, or ‘trading the day’, is a challenging, yet potentially lucrative trading method. It requires extensive understanding of the market, quick decision-making abilities, and the potential to handle risk effectively. With the right approach and continual learning, you stand a chance to make successful trades and grow your investment portfolio.