It takes a while to kick in (It took like 15-30 minutes my first time). You probably wont notice it right away. If you only smoke 1 hit you might feel a little mellow and calm. But if you hit more, you'll be happy . It will hit you like a ton of bricks. My first time my high came out of no where.

Just remember...

Inhale
Weed isnt addictive

And your fine.