How to deal with a rude co-worker?

hi, so there is this guy who is just rude and gives negative enrgy to everybody. how can we maintain normal relationship with him? he is also older so he probably thinks that he is and knows more. i just want to have a normal relationship, so that we can talk, laugh sometimes and great each other. do i need to be polite to him and him being rude or do i just mirror his behavior?

How to deal with a rude co-worker?
Post Opinion