I had a conversation with someone about my father-in-law, who died 15 years ago, and how often my wife and I talk about the advice he would give us.
We have no gimmick to make this happen. No journal we look at, no pictures. And it's not even memories, really. It's more like a sense of how he is, and his philosophy. Frequently there's just a nagging feeling that I/we are not thinking something through the right way.
But let's say something comes up where I need his advice and nothing is coming to me. I just can't connect to him... and I get super frustrated. I kick the table in frustration, say. For something like Impulsive Responses, that would work. It doesn't have to be his impulsive responses, it just has to be that his effect on me evokes Impulsive Responses somewhere.