Most of the time I am quiet and listening once it becomes dark. I will often, but not always, leave camp after sunset but before total darkness and spend an hour or two at a location I've decided on earlier in the day. There, I will sit quietly, be still, and listen for any noise the forest gives me.
A thermal imager will be with me and I will be scanning the woods and focusing on areas I hear movement or other sound. At some point during the night, I will do a single wood knock and just listen for a response.
When I've decided that being away from camp is not paying dividends, I'll head back and then quietly do normal camp activities for the remainder of the evening.
I probably need to change my evening agenda and try new approaches. It's easy to stick to the same protocol rather than try new, fresh ideas.