How dangerous is weed for teens?

Going to a party with some friends soon and one of them plans to bring weed, a bunch of my friends plans to go out and take it all together but the thing is I dunno if I should? I'm the youngest of the group and their in no way pressuring me into it but I'm pretty curious about trying it. I'm also kinda nervous for some of my friends who I know are gonna be taking it so any advice and how does it feel for the first time?