How to get liquid assets?

Excuse me, but could you elaborate on the process of acquiring liquid assets? Are there specific strategies or methods that are commonly employed? Is it a matter of simply converting non-liquid assets into cash, or does it involve more complex financial maneuvers? Additionally, are there any potential risks or considerations that one should be aware of when seeking to increase their liquidity? I'm keen to understand the ins and outs of this process and how it can be approached in a smart and secure manner.