Sitting 4 stakeholders and 2 facilitators down for a meeting that discusses a range of topics and encourages co-questioning.

Making a simple paper representation of a system that lets you flip between the pages to see how different interactions with the system would work in the real world. 

Asking people to rate how much they agree with the statement "I would complete my work faster with this tool" on a scale from 1-5.

Having people complete an online form to describe their problems with a current version of a piece of software.

Working with a 3d printed object with a digital screen built into it that can't register any user input.