I'm convinced that if everyone who likes fiber - that would be knitters, crochetters, weavers, etc... - tried alpaca fiber, that they would never go back to anything else. To that end, I do my best to expose as many people to the fiber as I can.
I carry a drop spindle with me where ever I go. I always let people "pet" the fiber and the yarn when they ask what I'm doing. Someone always asks. :-) They are always amazed that it's so soft. My current carry-around is some of Boot's suri fiber.
Sometimes I substitute teach at my children's elementary school. I always bring a bunch of wooden toy wheel spindles and fiber so that if we have some free time I can teach them. It doesn't matter what age the kids are, they LOVE learning. I've even done presentations in the kindergarten classes to coincide with the cowboy section they study in January.
I sent my cousin a small skein of dyed alpaca yarn at Christmas time. I had just found out she's a knitter. She spent time this weekend at a Superbowl party knitting some wrist warmers. Aren't they great!!
Of course, my children being California babies asked why someone would want to make something to keep their wrists warm. LOL!! I reminded them about our trip to the snow in Tahoe last year. *Then* they understood!