Speech giving is a tough thing for most people to do. Admittedly so by most, they need cues to keep them going or they end up tripping over their words. Something like a note or subject card can keep you right on track. It's best to look your audience in the eyes as much as possible. However, when that moment comes just before you feel like you've lost that piece of information, take a glance
. down and you'll be just fine.