Lido cafe is such a cornerstone of Sunnyside that you will almost certainly find yourself there. After going out with friends, meeting people for interviews, finding other shops in town are too lined up. The list goes on.
When finding yourself there, feel free to order anything on the menu. They have a large selection, all of it indistinguishable. I myself have endured the various Chow Meins, Burgers, and western breakfast options. Go with the Chow Meins, personally.
The sizes and portions are in inverse proportion to the quality. Enjoy it when you find that the universe has placed you there, for it will happen.
No need to do it willingly. Trust me.