Best Practices for Tracking User Intent vs. Action Events in Analytics

Are there any guidelines/best practices for tracking "intention" events (when a user clicks something) vs. "result" events (when the action that they clicked actually happens? For example, we allow all users to click "save a copy" on shared projects, but that takes anonymous users to a sign-in page, and only after they sign in will the project get actually copied into their account. I want to track two events, one for the click and one for the actual copy, but I'm struggling to come up with good naming and other conventions that would generalize well across other similar situations (and be easy to understand and use by my team in Mixpanel)