You can pick both if you like.
Pick as many as you like.
Be as flexible as you like.
A bit about your self, skills and experience to appear on your profile.
If you don't, just proceed to next step.
This will appear on your profile.
Only employers will be able to access this and it won't be viewable or downloadable on your public profile. If you don't have one, skip to next step.
Your profile will be live on the site within 24 hours.
Try and be as specific as possible.
Other?
For a good example on how to fill out this section, have a look at this article.
Both personal and in work-life.
Give a general overview on your past career.You don't need to go into every little detail.
Give a general overview on your education.You don't need to go into every little detail