Instructions
Notice how the "Dummy" field is hidden? (I left the label there to show that it exists)

Enter first and last name then click submit
This should result in a successful (human) submission

Now click "I'm a Bot" button (which will fill in data into the dummy field) and click Submit.
Input Form
Page Items
ITEM_NAMEDISPLAY_ASHTML_FORM_ELEMENT_ATTRIBUTES
P2900_DUMMYText Fieldclass="hideMe"
P2900_FNAMEText Field -
P2900_LNAMEText Field -
1 - 3