What phase of the project are you in?
Discovery
Exploration
Prototyping
Validation
What are you trying to learn?
I want to understand the problem space better
I want to validate my assumptions
I want to understand how users feel about an experience
I want to thoroughly test a specific solution
How much time do you have?
What is time? I need this last week.
Not a lot of time, but I have some wiggle room
I have some time, but want to get the ball rolling
I am quite a few sprints ahead
Are you trying to be get specific?
I don't even need to ask a lot of questions. Just observe
I just want to get a general feel for what people think
I want to get detailed but nothing crazy
I need complex information to inform a solution
You're in the clear. Go brave the wilderness — with a plan!
You might want to combine guerrilla testing with some other methodologies.
I think you and I both know this isn't going to work out.