How to get my baby to be active for ultrasound?

Briolette • 💚💙Rainbow baby due 3/10/16 💛💜
Or is it too early to try that? I'll be 10w4d at my next ultrasound and then no more until week 20. 😩 so I'd really love to see my peanut wiggle around! I've seen some say drink orange juice, but how far in advance? Also- should I eat a little or a lot? Anything to avoid? Thanks girls!