Personally I found it rather endearing on this occasion, more like the nervouse giggle of someone standing up to speak to a group of new people for the first time. Which isnt allways easy to do.

Hi Warning its nice to meet you, Im new too and finding this a nice place to pop into during lulls at work. The people are all really friendly most of the time and its certainly made me pick up some of my older pratchett books I havnt read for a long while and read them again.