First I would say that calling names can be taken as offensive and you should probably try to steer clear of it. It doesn't help you or anyone else and only serves to make someone feel bad which doesn't seem like something someone should aim for but something that should be avoided.
However, If you must resort to it, try making a light affair of it, using words that also reflect your congeniality and fondness towards that person.
However, If you must resort to it, try making a light affair of it, using words that also reflect your congeniality and fondness towards that person.