I will tell you what works for me and hopefully it can translate over to guy game...don't worry it isnt retail therapy
I notice that I feel in a rut when I haven't had much social interaction that isn't pick-up. I moved to a new city so most of the people I have met are people I am either seeing or was interested in. Hanging out with people that are merely friends gives my mind a chance to relax because it has been in performance mode too long. Hanging out with friends also supplies me with plenty of stories and topics to talk about with others.
I am usually pretty dominant in a group (AFOG if you will

). But every now and then I lose my edge too. I attribute my dominant tendenies to my quick-witted responses, so when I am not AFOG, it is usually because I have mush for brains that day! To sharpen up I play the "question game" with a friend. The game is simple...you both go back and forth talking but can only talk in questions. Your goal is to stump them: either they respond with a statement or they can't think of a question fast enough. The questions should be related and it should be fast-paced. Ask ridiculous questions to throw them off and such:
example:
person 1: Did you read the newspaper today?
person 2: Do you think I read it?
person1: Can you even read?
etc...you are competing with them to not only make them say a statement, but to have more dominate responses too. Always works for me! After I feel that my game soars for the next few days.