As I think about the way my child reacted to seeing herself on the webcam, it reminded me of how my students acted the first few times I used the webcam and/or skype in class. I think some of them also made funny faces and acted out more than normal. Before using a webcam and/or skype with students, it might be a good idea to give them 5 minutes or so to get the "wiggles and sillies" out. You might want to start by skyping with a class in the same building or with someone that you know in person.
But if students (or even adults) act a little silly when using a webcam and/or skype, that is OK too. If things don't work out perfectly for a skype conversation, it is OK. My students blogged about one of our first skype experiences where the sound was not working on one end, but they still loved the opportunity and learned from the experience. Please don't let the fact that everything may not have gone exactly according to plan prevent you from trying it again (or from trying it at all).
The Langwitches Blog has lots of great information about using Skype in the Classroom. She even suggests assigning students jobs (reminds me a bit of jobs for literature circles). My Making Connections with Skype Livebinder is full of suggestions, examples, and experiences to help teachers and students use skype.
Making Connections with Skype
title created using LetteringDelights.com