Well, there are two different highs in my opinion. One that makes you energetic (and by energetic, i really mean socially), and theres another one where you are chill and real tired. Usually the more social energetic high i get, i laugh at a lot, geek out, say the most stupidest things, can't control my actions, am reaaaally hungry, and have a really fun time, as long as i'm with my friends. (It can be boring smoking by yourself). Now the more tired high, you are chilled, and really tired, tired to the point where it's uncomfortable a little but ytou still feel pretty good, and are pretty hungry.
Some weeds have different effects than the others for me. Oh, and you won't get that high your first time. After doing it for a while, the high just keeps increasing everytime you do it, just don't try to get a tolerance.