Gender guess?!

Des • Oliver Jackson DeSimone💚
I want to have at least a guess of the gender by Christmas my 12 week ultrasound is on the 25th and im wondering if anyone ever asked the U.S. Tech to check in between the legs?! If they were rude I know it depends on the person but I was wondering if anyone got anything out of it or if I shouldn't bother and wait until they know for sure later just excited :)