Aqua net hair spray works good, too. If you use a permanent (Gorilla Glue) it will make for a mess when you go to replace them later. Just spray the hairspray into the grip, and slide it on.
I also used Honda grip glue like Fudgie. And my left side would still rotate. Some of the American mfg. bike riders I would tell them it was a left hand drive bike. And then demonstrate that the throttle was on that side.

Most were puzzled, and said they never knew there was a difference. I didn't tell them otherwise