when do u feel those butterflies...

When do you feel those butterflies flying around in your belly? - First day of School - just before going on a long trip - before an important meeting - getting ready for a first date - waiting for that first phone call after the first date - waiting for a job interview - your wedding night - approaching the fun fair from a distance - on your way to meet old friends - on the plane on your way back to your homeland - births - revisiting childhood memories - going back to your high school - right before your event - .... and more .... what makes your butterflies move around?!?!