Whenever I lucid dream I like to do things with DC's. I would usually ask them to do the activities with me, for example I once asked a DC "hey lets go visit a past life of mine, together" or "lets fly up together". They would usually avoid it and be like "err...later".
All my DC's are "avoiders", they avoid questions, they avoid long conversations. It's like they don't like revealing themselves, I don't know. Maybe I'm not experiences in LD'ing yet but I'm taking baby steps.