I just did a field report on getting a girl's number from a mutual friend, which can be found here: http://www.reddit.com/r/seduction/comments/z6rps/was_i_being_a_creeper_fr

I texted her and hours passed by without a response. I thought I came off as creepy, and got really bummed that she might never reply. After a while, I decided "fuck it, I shall give out zero fucks today" and deleted her number from my phone.

I thought to myself that unless she responds to me, she's not worth being a contact on my phone. I just kind of remembered her area code and last few digits for a day, in the event she texts back before the day is over.

As soon as I deleted her number, I didn't feel bad that I wasn't getting a reply. She wasn't even a contact to me anymore. So that feeling of "Aw man, she's not texting back... Did I mess up?" was totally gone.

Eventually, before the day was over, she texted back enthusiastically. However, a lot of the response anxiety that some people can't help getting can be eliminated by deleting her number until she replies.