Kubotan / Yawara / Pocket Stick Methods and Targeting

I got the following question here on the YouTube channel:

"On Kubotans what are the best places to hit with and is there a best way to hit, a hooking action or a jab or a combination of things. The kuboton or improvised... poking weapons are often overlooked as means people have every day to defend themselves. I have my ideas but as you are a man of larger size how you do it and how size matter in technique would be interesting to hear."

Here's my answer; I hope it helps.