How to correctly use setting spray?

Could you please explain to me the proper way to utilize setting spray? I'm interested in learning the best practices to ensure my makeup stays in place throughout the day. Specifically, I'd like to know when in my makeup routine I should apply it, how much I should use, and if there are any specific techniques I should follow for optimal results. Additionally, are there any common mistakes to avoid when using setting spray? I appreciate your guidance on this matter.