Khaled Weir, Web Strategist at Cyber-Duck discusses the pros and cons of two forms of user testing. At Cyber-Duck, we pride ourselves on our user centred design methodology and conduct user testing sessions using our eye tracker on a regular basis. Last week we had a great opportunity to perform some user testing on our client’s soon to be launched website at a busy graduate fair. With limited space, it would be impossible to effectively set up our eye tracker, so we decided to conduct guerrilla user testing instead.