Hello, we have an eight year old male that does a rarrrrrrrr talking noise when he wants our 5 year old female to play, just about once a day. He will also do it when we get home if we have been gone for over 4/5 hours or more. Our female is very quiet. She rarely is the one that initiates play but when she does, she will make these little noises that I really can't explain but closest thing would be little monkey talking but with a wanting voice, so I call it her little monkey noises. Other than that, she let out 4 real barks in a row once when my brother was playing and raised his arms in the air like a big bear and sort of scared her or exited her, not sure but I was amazed at the loud bark. Raising her arms in the air is actually her trade mark maneuver when playing so maybe its related to that. I say wootwoot and she stands up and wootwoots her arms in the air. So with my experience, each basenji is different in how vocal they are Also, our male is not a tail wagger but our female wags that little tail like crazy when we get home. So maybe some are more physical and some more vocal. Maybe Wendy will show those signs when she becomes more comfortable and social. Poor thing, I can't imagine keeping and animal confined and alone, especially a basenji.