Answer:
Light me up in backyard gatherings
I am a shiny metal sheet that covers BBQ food.
I am a way to say goodbye to your sweetheart
I can run but not walk. Wherever I go thought follows close behind.
I am merry creature in pleasant time of year as in but certain seasons I sing that you can hear; And yet I'm made a by-word A very perfect mock; Compared to foolish persons And silliest of all folk.
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?