So, just grab the entire container in your hand as if you're seizing a jumping bug that you don't wish to escape. The explosion will then occur within your closed fist and you'll have the tasty seeds. That's right. Tasty. As in freshly shelled walnuts, because that's what they taste like, to me at least. You'll work for a meal, though - it probably takes 943 of these wee seeds to fill up an average humanoid.
Enjoy the colors of creeper and other fall foliage will you can; it'll be gone before we know it.