This is just a brief reminder to people - if you are knowledgeable about a subject, have just given a useful and informative presentation on the subject to your colleagues, and they then ask you some questions, do NOT giggle before and after every question,
e.g. "How did you track the data for this project?"
"Giggle, We used a blah blah blah methodology, so we were able to have full information at all times, giggle giggle."
More seriously, I can appreciate that the colleague was nervous about presenting in a different context (she does a lot of presentations in other contexts), but it was a real shame to see her let her knowledge of the subject down by giggling - to make it worse, it was in a really inappropriate context (think public sector, cuts, disadvantaged groups in society, etc).
In case I have a young colleague in the future with a similar problem when giving presentations, are there any useful tips I can pass on? Deep breaths?