What hallucinogenic effects does marijuana have?

Marijuana is a mild hallucinogen. It doesn't produce full-blown hallucinations -- like, you won't start seeing stuff that isn't there, or not seeing stuff that IS there. Rather, it sort of just makes things look funny. The effects are different for everyone.

For me, it has always altered my depth perception: things that are three dimensional start looking two dimensional, and things that are two dimensional start looking three dimensional. And objects sort of seem to shimmer or twinkle. But when I mention this to other pot-smokers, they never seem to have any idea what I'm talking about. So I guess it must be different for other people.

The first dozen or so times you smoke pot are much more intense than all the subsequent times. The first few times I smoked, I would see everybody's faces in my head as if they were Cartoons. It was really weird. Whenever I thought of people I knew, instead of seeing their real faces in my mind's eye, I would see them as cartoons. And there was a cartoon me, as well, and for some reason this cartoon me was named Ramona, even though she was me.It's hard to explain; it's just too weird.