My two Jehovah's Witness cousins and I attended a wake/funeral for a very good friend of ours. We paid our final respects to the family and sat about 4 rows from the front.
While we were sitting, a former elder from our congregation ( who was disfellowshipped along with his wife and 2 children ) walked over and paid his respects to the family of the deceased.
He notices my two cousins and I sitting near the front and proceeds to walk over and say hello to us. ( It's been years since we all talked to each other). As soon as my two Jehovah's Witness cousins saw the ex-elder approach us, they got up and left their seats. They sat in the back row until they saw that I was done talking to him and walked back up front as soon as he left the funeral home.
All they had to do was say hello to him and have small talk. I always thought that disfellowshipped people were o.k. to talk to at a wake/funeral !