I tried measuring the transmission fluid using this procedure:

Started the car
Warm up for 20 minutes
Shifted the car through its gears
Pulled out the dipstick and wipe off using a lint free rag
Push back for 5 seconds
Pulled out to measure and I could not tell if there was any fluid being measured.

I did this many times and still cannot tell for sure. Now, when the car was cold this morning, I pulled out the dipstick and there was fluid in the dipstick. Is there something I should be doing? Is there another procedure I need to know to properly measure?

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200 75 W115 (Mom's)
190e 90 2.6 W201
E320 95 Wagon W124
72 BMW 3.0 CSI