Actually the way you play the note depends on who wrote it and when. Ornamentation between Bach, Beethoven and Mozart are all different.Depends on the fingering. If I get the upper note as a 2, then it's a 1-2 trill and I play it with my thumb and index finger.
If the upper note is a 5, then I play it with pinky and ring fingers.
And you play each note as a... 32nd note. semidemiquaver or whatever