Do not ask about salary and benefits in the first interview. A 'next step' may be as simple as determining when they're making their hiring decisions and when or how you can expect to hear from them. Get business cards from all present so that you can send thank you notes to them. Leave them with a positive impression. If you have a contact in your network that may be able to put in a good word for you or holds any weight with the interviewer or company, call him or her.
Personal recommendations go a long way.
If the interviewer asks for follow-up information or for you to call on a designated day, make sure you do so. Ask for clarification of responsibilities. If you have done your homework you will know the range for this position. Evaluate this carefully. Be prepared to provide information on at least three references.