I learned a valuable lesson today: slow down! When expecting students to follow along with a hands-on activity make sure to give clear instructions, such as, what URL they should start with and then how to proceed from there. And most importantly - wait for them to get there!
Also never underestimate the benefit of having a co-pilot at any session with a hands-on component. It was very useful to me to have my colleague co-present our session on RefWorks today. Not only were we given the opportunity to brainstorm the topic in advance, but also we had the chance to learn from one another in action. We could also circulate the room and discover which students were on the right page and which students needed a bit of further assistance!