Any idea that is interesting enough to you will be a good idea. You cannot write a story or novel based on ideas that someone else invents - you won't be interested enough in the subject to be able...
No. While initial ideas are ideas one first thinks of and can become primary ideas (or, in other words, the main focus), primary ideas are not necessarily the first ideas one thinks of (better known...
To do a punch, punch the air just in front of whoever you are 'punching' while hitting an area of your own body that faces away from the audience to create the sound.
To kick on the ground, kick...