Sukkah 38: What If You Don't Know How to Say Hallel?

The case of a traveler on Sukkot who doesn't have a lulav with him - when and how should he take the lulav? What about anyone who doesn't take a lulav in the morning? The degree of urgency to go take the lulav will depend on how late in the day it is. And, of course, this case is only relevant for chol hamoed. Also, the case of a slave, woman, or child reciting Hallel, and a man repeating after any of them, or responding to them - that works, but is not laudable. Note the variety as to how Hallel was said. Plus, can one fulfill the requirement of Hallel if you didn't even respond? Also, the story of Yoshiyahu to support the halakhic conclusion.