How to buy at Raydium?

Could you elaborate on the process of purchasing assets on Raydium? As a cryptocurrency enthusiast, I'm interested in understanding the steps involved to make a purchase on this platform. Is there a specific wallet I need to set up? Do I need to connect my wallet to the Raydium platform? What are the security measures I should take to ensure a safe transaction? Also, are there any fees associated with making a purchase on Raydium? I'd appreciate a concise yet comprehensive explanation of the buying process on this platform.