Quoting from Pure Dalet:
Observe 3 Procedures being used of each of Theory Levels 1, 2, 3, and 4 in the Stealth Discipline, and have the people using them explain the principles of how they did it (roughly a minute to five minutes of roleplay for each Procedure being explained. The total should be at least 30 minutes of discussion in all). You must observe at least one Procedure being delivered by each Method: AMP, Device, Prepared, and Spontaneous.
Spontaneous is from a Skill, whether from Genius or Applied Science.
Head of Plot, FI 3