Were they hulled/unhulled sesame seeds? Get the unhulled ones. Anne Wigmore’s book (The Sprouting Book) has a few black & white pictures of sprouted seeds, and the sesame seeds don’t look much different from their non sprouted form.
Stillfire, good question. Guess it doesn’t matter… except if you want to sprout you keep them out of water (following the sprouting process) or if you don’t want to sprout you leave store in water. I’m just about to practice sprouting… I don’t plant to store them dry in the fridge, but I wonder: will they sprout in the fridge?