User blog:Thwipsnikt/Noob with questions

Hey all, I'm new to wikias and am having some minor confusion here and there. It's nothing terrible, but if anyone can help me out, I'd appreciate it. For starters; when editing, I can't seem to find the place for adding a summary of my purpose for editing. Would someone please point it out to me? Second: where should, and shouldn't, I include my signature? Should I have closed this post with it? Thanks everybody!