Which witch is which?

Pickle , in his search for knowledge of Earthlings, was intrigued at the sight of diminutive pirates, fairies, witches (no watches), Harry Potters and Spacemen, not one of which looked like Pickle, on Wednesday night. He commented that he had not seen this species before and he was curious as to their lifestyle. I (the 'guide') explained Hallowe'en to him and made him a card as a memento to take home with him when and if. Pickle said he wouldn't take this information back to his native planet, nobody would believe that children would go door to door scrounging candies to make themselves sick and ruin their choppers, but I said it was just a bit of fun and only once a year but I don't think he was convinced.
LITTLE FLY upon the disk/ I think you are too small to frisk/ I wanna check if you gottagat/ Don't matter - here's my swatter - blat.