This means understanding how Bitcoin works and why it has value

Once you have a firm understanding of Bitcoin, you will be able to better evaluate opportunities and make informed investment decisions.
Do Your Research, you need to do your research before making any investment decisions. This means learning about different cryptocurrencies, their technology, their markets, and their risks. Only by understanding the space can you make informed investment choices that have a chance of being profitable.

Finally, once you have done your research and believe in Bitcoin, you can start buying the cryptocurrency. There are many ways to do this, but the most common is through a cryptocurrency exchange. Exchanges allow you to buy Bitcoin using fiat currency (like USD or EUR) or other cryptocurrencies. Once you have bought Bitcoin, you can hold it as an investment or trade it for other assets on the exchange.