@Derek
In the "Mystery Method" building comfort is actual a set "phase." But I was speaking in a more general sense. Basically, building comfort involves everything you do to remove a girls inhibitions around you. At the beginning of an interaction, this involves false time constraints, indirect openers, etc. Later, it could involve inviting her over but telling her to "dress casual" to take pressure off.
@Tulisan
For resources, check out the "mid game" and "closing/day 2" sections here and read lots of field reports. Fastseduction.com also has a forum with some great info, although it is not very well organized and be difficult to navigate. They also host archives of old ASF posts (
http://www.fastseduction.com/archives/) and if you don't mind doing a little digging there is some absolute
gold to be found there. Also, surprisingly, google can actually bring up some good resources sometimes (if you're willing to sift through the crap.)