In order to control information, you need to have some. Bizarrely, people are somewhat loathe to convey information generally, especially if they understand that knowledge is power. Your job, as Secretary, is to empower others whilst making yourself indispensable. Providing people with information will allow them to make better decisions (hopefully), more quickly and without frivolous, unhelpful and, most importantly of all, lengthy, debate. Remember, you are going to be minuting the meetings.
So, what does an Executive Committee need to know? You’ll need reports from the Local Party Officers (Chair, Treasurer, Membership Secretary), whoever organises social events, the Council Group, the PPC(s) and any branches. Where there is no specific source, find one (ensuring that they’re reliable). Explain to them that, in return for providing a written report in advance, the meeting will be shorter and they can go home/to the pub/leafleting earlier. Most people hate sitting in meetings when they could be doing something more useful/fun. Take advantage of that.
Make sure that your Regional Party knows who you are. After the Annual General Meeting, the Secretary is required to report the contact details of the Officers, as well as the Federal and Regional Conference representatives to Cowley Street. Make sure that, if you weren’t responsible then, that it has been done. In return, they’ll send you information about conferences, and use you as a conduit for reaching Local Parties when they have something to disseminate, as will the Federal Party.