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The most important thing to remember is that I am not testing you, but the prototypes. Some of the links may not work quite right, and I'll let you know. You Don't worry, you can't say anything right or wrong, or break them. All the patient information is fake. 

Do you have any questions before we begin?

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If very short on time, please at least ask about their job, e.g. "What type of work do you do here?" and perhaps "How could the electronic medical record make your work easier?"To begin, please just take a look at [this screen]. What are your first impressions of what this is?

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3.  Tasks

Specific tasks will be provided for each prototype.

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I really appreciate your time. Thank you

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Resources

See for more details the OpenMRS Usability Testing Full Length Guide.