How do I add Lido to MetaMask?

Could you please explain to me in simple terms how I can successfully add Lido to my MetaMask wallet? I'm still a bit new to the cryptocurrency scene and I'm having some trouble navigating through the process. Could you guide me through the necessary steps, including any specific settings or configurations I might need to make? Also, would it be possible to highlight any potential risks or security considerations I should be aware of? I'd greatly appreciate your help in getting this set up correctly.