Hi. I tend either use a shape peg system to remember todo’s from conversations. For example, if I’m talking to someone and they asked me to do something specific like send an email I would associate the todo (email) to my first peg which is a pencil.
If it’s a conversation with someone that I’m trying to remember, then I try to use the person’s body as my memory palace and put key ideas/words on each loci on the body. The top of the head being number 1 location, forehead number 2, eyes number three etc. I then review my loci’s later that day. Just trying to convert key words to pictures has helped me remember much more of the conversation then I use to be able.
One more thought, I tend to review my day right before I go to bed. Walking through everything I have done during the day and replaying the conversations in my head. When I say I walk through my day, I mean that I mentally see myself getting out of bed, putting on a pair of short and walking to the bathroom, then peeing, then shower, brush teeth, what I had for breakfast, which way I drove to work, etc. I would mentally redo my day. It takes about 5 to 10 mins. The first couple of weeks I was terrible at recalling my day. Try this for 30 days and you will be surprised how much more you can recall. I think you mind starts to try and remember more because it knows you will want to recall the day. Hope that helps.