There is an option to add tags when you create a new job or when you edit the job from within your dashboard. Click: Manage Gigs
Tags are keywords that belong to your Micro Job which describes your job with a few "key" words. For example if you look at a picture of a beach you might think "Holiday", "Beautiful" but others might think "Swim" or even "Tsunami". Tags are a list of words separated by commas.
You can compare this with hashtags on Twitter and Facebook.
When someone types in something in the Fourerr search field, we try to match this with your tags. Try to think about what people will type in if they would search for your service.on our site.