How to generate Likes on Facebook & Follows on Twitter etc for a business?

[Cpats]

I am in the interview stage for a Social Media Marketing job for a company.
I have experience in this field, however previous my job was to maintain the existing profiles.
In the new job I would be expected to promote and publicise the Facebook page, generate as many likes as possible, with very little existing activity to work on.
HOW would I do this?
WHERE would I find these likes?

I need some ideas on how to initially get business profiles off the ground.