If you are using a strap, you carry it the same way women carry purses, except for the guitar will be on your back. Or you can casually hold it as if you are about to play.
The strap holds your laptop in place so it doesn't move around while you carry the bag.
in the carry on
depends, are you checking your pack or taking it as a carry on?
Always pack your essentials in your carry on suitcase. Think about what you'd hate to do without on your vacation and put that in your carry on suitcase. If you're taking a purse, instead of using it for your second piece of carry on, pack a small purse in the carry on and use a small piece of luggage such as a makeup case or duffel bag for your second carry on.
A wriststrap is a strap worn around the wrist, such as to carry a camera or some other item.
A fanny pack refers to a storage device that is used to hold various items. The pack settles into place on the front part of one's waist and is secured by a strap that goes around the person's back.
I have brought my GPS many times right in my back pack as a carry on. and security has never had a problem with me bringing it on. So I would assume you can pack it in any of your bags and carry on's.
pack?
Quiver.
Carry everything in your back pack.
Because it is a pack that you carry on your back.