If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

What were you trying to do when you stopped or paused?
Which instruction, if any, made the next step unclear?
What other interruption affected this attempt?
What would you need to decide whether to continue?

Author notes / illustrative keys where applicable:
1. Ask about the actual stopping point without assuming dislike.
2. Locate a concrete instruction only if it affected this attempt.
3. Separate external interruptions from interface obstacles.
4. Collect a voluntary next-step need without pressuring completion.