Being a digital citizen is to simply conduct yourself appropriately while accessing the internet; conduct yourself as you would in public. Don't: whisper, make negative comments, shout out profanity, walk around naked, slander people, push people, provoke people, or cut people off.
Just as we train students to 'play nice' with each other in the classroom and on the playground, we have to teach them to conduct themselves appropriately on email. Netmanners.com is great site filled with all the E-mail etiquette one could possibly need to train students (and adults) on appropriate E-mail use.
