hahah ok now we're all out of the closet here!!!
when I was kid I did all of the above... now I tend to either:
1. once I have the wings on and painted waiting for the gear to be placed... find myself eyeballing down the fuselage banking the model etc... wondering how graceful it was... what it sounded like (found a great site with movies of restored planes from WWII taking off and flying... it's an awesome sound!!!) what it felt like in a bank or whatever... the blood rushing into your head... the vision narrowing with the G's etc...
2. stare up at the one or two I decided to build with gear up, hanging from the ceiling... when the AC or heater comes on they move just the slightest and if you squint your eyes just right you can imagine them in flight... my fav's are a P-51 in O.D. and a F8F both in formation together....