Teddy: Good. We can talk then, right?
Dr Cawley: We have been talking, Marshall

The exchange occurs towards the beginning, if I recall correctly. Right after Teddy interviews the staff and then the staff discovers the phones are out. Dr Cawley says he has to do his evening rounds but he invites the detectives for drinks at his residence later

the exchange stuck with me because it shows, to me, how aggressive and at same time inexperienced Teddy is at what he’s doing. always seemed Dr Cawleys response is at same time shows exasperation and also some sadness.