This might be dated back to Glamour's 2011 July issue, but it's just as relevant today as it was back then! I found this through Google's pictures and wasn't anywhere near Glamour. I was looking for a picture of a fun couple flirting and when I saw this, I was like, WOW! Good stuff!
These ideas are meant to be cheeky, but real. Meaning, read between the lines a bit, have fun, don't take the flirting so serious that you're trying to get married after a first date. It's just flirting. That's all.