Assigning a Tag to a Contact record can help you understand what type of attributes your Contact typically recruits for.
To assign a Tag to a Contact record, locate the contact record you wish to assign the Tag to.
Click on Related > Candidate Tags or Client Tags
Click Add Existing Tag
In the Lookup Records box, enter the name of the Tag you want to assign and click Add
You will now see this Tag listed in your Contact's Tags section.