We decided to ask to film 50 random people, we said we would ask them a question only if they agreed to be film. Once agreed and the paperwork out the way, we start recording and ask them: 'What is ___?'.
This was so we could get there natural first reaction to the question. Instead of telling them the question off camera and then giving them a slight bit of time to think. Interesting to see how some people felt very open to describing in full detail and others struggle or are too embarrassed to think or explain, as well as most of the responses where heterosexual based.