What are the effects of smoking weed?

It depends on the person. You might feel a sharp headache for a few seconds at the beginning, though many don't. Your pupils will dilate, and things will appear brighter. That is why users may wear sunglasses or sit in the dark. Then you may feel a feeling much like alcohol intoxication, though it may feel like a clearer buzz. You might feel things that you don't normally find funny are funny, and you may also get really hungry. So users might play mind games or pranks with each other, watch cheesy movies nobody really cares for any other time, and eat a lot.