You may see something that is not directed towards you at all or is just not there, he may be generally a nervous person or shy, he may know something about you, you may scare him or even may find you appealing. I wouldn't read too much into it or take it too seriously as chances are it has nothing to do with you.
Nervous; agitated.
The neurons in both systems work together to help you think, survive, and change the world around you. The nervous system also senses activity inside of your body!
it all work together the nervous system works with every single system
there aren't 2 divisions of the nervous system. (:
The nervous system work very closelly to the endocrine system (hormones).
because most systems work hand in hand with the nervous system.
yeah
yes
Nervousness is only a state of mind, meaning even when you feel nervous you don't look nervous. So, just go and be yourself and if it does not work out, she's not for you and life goes on. Just give yourself time to build up confidence and calm yourself. Everyone goes at their own pace, and it's natural to be nervous around people you like.
The skeletal muscle works with skeleton by constricting and moving it.The nervous system gives the signal to the muscle and makes it constrict.This would mean that the two that I know of would be the skeletal system and the nervous system
the nervous, respiratory, circulatory,
How does body system works