I had lunch with a girl yesterday. I called her tonight, but got a voicemail. I wasn't really sure what to do, so I left a short message asking her to call me back. Is that the right move or would you say more, such as what you'd like to do for the second date? Or maybe it would be better for me to say that I was going to call her back? Also, how long should I wait before I try calling again if she doesn't ring back? What do I do if I then get the voicemail a second time?