Scan the room left to right. Quickly. Do it 3-10x. Survey the people.
Now. Go to the far left person, look at their head. Maintain eye to head contact for 3 seconds. Now with your mouth make a (bzzzrrr) noise and turn your head slowly to the next person. When you stop turning your head make a (kerthnk, zzp) noise. Do this for every person in the restaurant. You now have data on everyone.
Next step, scan for exits, reposition yourself at the table so that your back faces the nearest structural wall, this will be useful if there is a fire fight. Turn your seat backwards and plant your feet far apart for maximum stability, also granting you the mobility to leap to your feet and dive through a window if necessary.
I assume you are wearing leather gloves and a bandana, nod to yourself and squeeze your hands a few times to get the blood flowing.
The server is here, order nuggies and a water. You'll need your protein, but you are prepared.
Go forth and conquer the world my child.