Most likely he is already trying to communicate. I've had this concern before and always thought I wasn't able to communicate in specific ways like telepathy. It wasn't until we played a card game together once. I discovered that what I thought was a "wild guess" was incredibly accurate. This made me realize that a large part of what I thought was inside chat came from spirits.
It is highly recommended that you play this game when practicing communication to determine your appropriate communication style.
Card Game.
1. choose four cards (tarot, letters, colors, any card)
2. shuffle the cards and choose one to show to your spirit. be careful not to look at the cards yourself
3. Choose any method of communication and let your spirit tell you the answer in this way. Don't think in terms of probabilities, listen to their answers.
4. determine which method of communication has the highest accuracy
5. (Optional) Add number of cards to increase the difficulty