  The engagement of Citizen Scientists with the HiggsHunters.org citizen
science project is investigated through analysis of behaviour, discussion, and
survey data. More than 37,000 Citizen Scientists from 179 countries
participated, classifying 1,500,000 features of interest on about 39,000
distinct images. While most Citizen Scientists classified only a handful of
images, some classified hundreds or even thousands. Analysis of frequently-used
terms on the dedicated discussion forum demonstrated that a high level of
scientific engagement was not uncommon. Evidence was found for a emergent and
distinct technical vocabulary developing within the Citizen Science community.
A survey indicates a high level of engagement and an appetite for further
LHC-related citizen science projects.
