Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How can you get a good idea regarding the pay level at a job you are interviewing for, without asking outright?
Take a look at the cars in the employee parking lot, this will be a reflection of the salary levels.
Research the company's industry and similar positions.