You may not know at first, but if your gut is telling you that this person is a player, I would suggest that you go with that. If they seem casual, looking around the room, vague about their life and pans with you, these could be signs that they are just out playing the field and enjoying themselves. If that works for you, then go for it. I wouldn't cut anything off too soon, but keep your eyes open and follow your gut.
I am not able to speak by phone. I can respond to you here in this format.
Signing off for the evening in a few, let me know how I can support you further before I end for the night.
As I mentioned I am not available by phone. I can opt out so another expert can help you.
I will opt out as I am not available in the way you need right now. I am off for the night and was hoping we were able to converse when I responded yesterday.
Wishing you a wonderful holiday.
If you would like to talk by phone or Skype, I am available. I am an interpersonal communication researcher/professor and relationship expert. I am available this afternoon and early evening, East Coast Time to phone or Skype. I will send you the information/form to contact me.
Take good care,