[header] How to deal with someone who talks too much in meetings [title] Listen, but do not encourage. [step] Maintain a neutral and level expression to the person who is talking. If you are trying to redirect the conversation, avoid any positive or negative responses, such as smiling or eye-rolling while the person is speaking, as either could make them want to go on more. 
Also, avoid interrupting, as that will likely make the person go on longer. [substeps] This approach works best if you are a peer of the person or in a non-leadership role.