Speak in the first person. Use your own voice; bring your own personality to the forefront; say what is on your mind.
Use a disclaimer. Whether you publish to a blog or some other form of social media, make it clear that what you say there is representative of your views and opinions and not necessarily the views and opinions of IBM. At a minimum in your own blog, you should include the following standard disclaimer: “The postings on this site are my own and don’t necessarily represent IBM’s positions, strategies or opinions.”