recently after training I had a chance to record applications for Heian Nidan / Pinan Shodan.
As I (currently) see it, Pinan Shodan / Heian Nidan as the first of the five Pinan/Heian katas provides solutions for dealing with round attacks like a big hook, straight attacks like an attempt to push or grab, and kicks like a clumsy football kick. At this stage we have not yet been grabbed. The applications are designed to go with the natural flinch response and to quickly facilitate escape.
The video is intended as a memory aid for myself and my students. But it might be useful for others as well. Have a look!