Run around the apartment pretending like I'm in an action movie or something. Or, along with that, act out scenes / recite lines from movies I've worked out in my head that I'd like to make someday.
Walk around explaining (out loud) something to myself that I already understand, as if I was explaining it to somebody else.
Occasionally wear pajama bottoms around the house instead of getting fully dressed. Hey, it's weird for me - I cannot stand having anybody, even my own wife, see me not fully (and properly) dressed.
Also, put me on the other side of the line from anybody who uses the restroom with the door open when they're home alone. Not only do I always close the door, even when alone, sometimes I'll even still lock it.
Walk around explaining (out loud) something to myself that I already understand, as if I was explaining it to somebody else.
Occasionally wear pajama bottoms around the house instead of getting fully dressed. Hey, it's weird for me - I cannot stand having anybody, even my own wife, see me not fully (and properly) dressed.
Also, put me on the other side of the line from anybody who uses the restroom with the door open when they're home alone. Not only do I always close the door, even when alone, sometimes I'll even still lock it.