Just call the girl. For all the reasons everyone else has posted.
And PS, I don't know how the other girls will react to this one, but my friends and I would prefer the guy to call the next day or day after, rather than the 3 day rule. It takes a real man to call the day after you meet just to say "I had a really great time talking to you last night..."
Keep that in mind gentlemen...
Tara
---to pratice day by day
love, honor, truth---