You are going to want to try the street food. It is delicious most of the time. Look for the places that always have a crowd around them.
Traveling does not mean that everything is going to be perfect. You can get sick. Luggage will get lost. Learn to laugh those things off
Travelingsarah's blog 
The queues, Sarah, the queues!
Crowds are easier to tell outdoors.
So true that humour is held as one of the more mature defence mechanisms/coping strategies.
[the former Freudian; the latter from the Cognitive Behaviour Therapy world…]
I like to check the restaurants with big group tables either indoors or outdoors and the ones that people can come to and join in and out.