I agree with genuintegirly on the pants, except make sure they are flat front and not pleated. Also agree with the belt suggestion, but remember, black does NOT go with blue.
Choose your shirt color based on your hair color. Never wear a short sleeve shirt, to anything. The lighter your hair, the darker the shirt, the darker your hair, the lighter color the shirt with the exception of natural black hair, then you can wear certain dark colors.
If you wear a light color shirt, wear a V-neck t-shirt in case of unfortunate sweating. Obviously light in fabric, not a heavy one like you would wear if it was cold.
Agree with the genuintegirly on the shoes. Of course, never wear open shoes to any semi or I - think - I - need - to - look - nice event.
After you receive your award(s), roll the sleeves of your shirt 3/4 of the way up your forarms for the stylish but I'm in control look. This also gives you something to do with your hands if you are anxious, push your sleeves slightly, fuss with the cuffs , etc.
Meticulous stubble, nails, hair, eyebrows etc. No gum or mints. Get a dental cleaning before hand if you need to. Light cologne. Smile. Extra cash. Condom(s).
You are there for a reason. Casual, quiet confidence wins. You've earned it so own it.
Have fun.
And congratulations!