explain your idea on should josh call sydney or not

I believe josh shouldn't call sydney because he doesnt know if it will alter the future or not. Josh right now is in a predicament because he doesn't know if he should call the girl of his dreams or not. Sydney gave him her number during Joshes last period class which is called peer issues they share the class. Josh stands up for Sydney against a guy named rick and they are fighting about"hooking up" and a guys to far and josh says this, "She's right. It's human decency.''(110) defintion of human decency. Emma thinks that Sydney is going to play hard to get and not answer his calls until later. So this make josh very nerves in calling her so i think he should wait it out until she calls him.