Once you sign up for Adwords, they will prompt you to set up a campaign. You can set up a campaign just for practice. Google will not bill you unless you enter your billing information. Here’s a breakdown of the campaign settings:
In this section you give your campaign a name.
Locations and Languages
Target where you want your ads to appear. You can choose between all Countries, A specific Country, a specific State, or even a City. Same applies for languages.