The meaning of shoes exchange symbolism on #LittleWomen
Shoes exchange is important element in series. Each time someone do shoes exchange, they receive things (from act of love), but they gave away things too (result of bad omen)
Theory/Speculation No. 2:
Tina disguise as one of Grindelwald's followers, to give information to Dumbledore and to get closer to her sister, Queenie + Credence
I already building another theory of #WhereisTinaGoldstein beside the theory of she being leader in MACUSA to changing law for Queenie (link theory in comment)