I had a phone interview on Tuesday of last week for a company that I'm very interested in. The initial screening went so well that she wanted me to speak with the Director of the department I was applying to as soon as possible, so I ended up having two phone interviews that afternoon. I'm not sure how the second one went. It was very short and he only asked one question, although I had a few for him and he had said "that's a great question" to two of them. At the end of the call he told me he would have the initial interviewer contact me. I was foolish in not asking when. I sent both interviewers a thank you email and said I was excited to learn about the next steps but I haven't heard anything back.
How long should I wait to follow up since it was only a phone screening and what is the best way to follow up? I'm not sure if the 10 day rule applies here or if I should be more proactive. Like I said, I'm VERY interested in this job but they were vague on their timeline (initial interviewer's response was that she hoped to make a decision soon - wouldn't specify a date).