I always look for emails where people provide information, like "I'm interested in your item, here's my cell phone number and email. These are the times that are convenient to meet you, and name".
I just delete the emails that say "I'll give you 20 bucks for your $35 item", no name, no email, no cell... nothing.
Good Luck with getting it. I once sent an email to some one with my cell to text back at the previous night. We arranged a meet up time at 3pm because he had classes till then. 2 minutes before 3, I get a text saying "sold item". That was frustrating.