How Do I Deal With Pessimistic Co-Worker?

Dear Experts, I have a co-worker who has a tendency to be extremely critical. He is always negative! He consistently gives out bad vibes and it's starting to bring me down too. I share an office space with him so I listen to it all the time. What do I do? Here is how our T.A.P. experts answered this question:#209 If ignoring him doesn't work, talk to him on-on-one and discuss your feelings. If that doesn't work, ask to be moved. (@gradversity) Q#209 Change subject. Disengage from negative chatter (is possible!); turn away/ignore. Read @sweetcareers' great post. (@ValueIntoWords) Q#209 Resp w/positive statements, walk away/don't engage; say "I prefer 2 look 4 good, so stop telling me neg." (@juliaerickson) Q#209 Tell him to cut it out; he probably doesn't realize. Also, get and wear headphones. Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.