There is a big difference between real ki and being able to mimic a few ki tricks that are taught in any aikido dojo. Look for real integrity in teachers. They’ll understand true ki. And read the masters. It’s all there.
Basic aiki. Basic aikido.
Basic aiki explained by O’Sensei
Again, aiki wisdom from a true master.
Bravado should not be found in aikido, as it’s all about ego. Showing off is the same thing and is a sign of poor character.