Game development
Use playtesting to answer one question
A playtest is easier to interpret when it has a focus. Choose control clarity, a level route or a feedback cue instead of asking whether the whole game is good.
Observe specific actions and record them before interpreting them. A pause can indicate planning, confusion or distraction; follow-up questions help distinguish those causes.
Continue the study
Work through a small code example, make one deliberate change and record the effect. The reading links below connect this exercise with animation, input and retro game design.