What counts as a work search for weekly certification?

The certification asks how many work-search activities I did and I do not know what qualifies. I have read a lot of threads here and could not find my exact situation. Some days I only network by email or attend a job fair. Has anyone been audited?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

Screenshots of the submitted application are handy backup when a posting disappears.