CV question

[shadow_muffins]

I am in the process of updating my CV and am wondering if there is an appropriate way to list a thesis defense on there. Should it be under the degree or with presentations on on its own? I also presented my research at a grad student workshop at our university so am wondering what would be an appropriate way to cite this without it looking like I am trying to pad my CV - or should I just leave it off? I do have half a dozen other conference presentations.

Do most people separate the presentations by poster and paper, and then REFEREED and non, or would it be better to sort them into national and international (since I have two international conferences...)

Thanks in advance!