lol, well for suma that cid, it does all depend on how far you're willing to travel into your mind.

1 hit will most likely have you feeling really good with amazing body highs, and maybe some visuals, while 2 or more only increase the intensity. If it is good stuff, which is usually hard to tell, 1 hit will fuck your day. The only kind I know for sure that is top-quality is "white fluff", which is white-on-white layered with NO taste whatsoever. I took two of these not too long ago and soon regreted how hard I had to hold myself from loosing my mind. The wonderful thing about acid is that you'll probably sit there thinking totally random thoughts, so be prepared to explore your mind.

And truthfully, if you think you're ready for 2, take 2. My only advice is to be somewhere safe and comfortable to you. This makes the trip a lot more easy to enjoy, and rarely "freaks" you out compared to a social setting or even, lol, at a huge concert like I was this weekend. If you took 1 hit and went to a part or something, that would be a really good time. Anymore though, and it won't be too enjoyable of a time.

Hope that helps man, and happy tripping!