interesting technique for networking

As a natural introvert, networking in general can be hard for me, but I know it's an important part of the conference experience.  Last week I came across a tip from blogger Sid Savara:  Offer a snack to your fellow conference-goer.  He recommends a banana.  What an interesting idea!  It appeals to the mom in me, and the hungry conventioneer as well.  Although I personally can't stand bananas I think I might have to try this.  What techniques do you have for breaking the ice when out of your comfort zone?