How to spot LSD usage?

[astroglide]

i've done microdots before. it's not a "brand" of lsd, just a delivery mechanism, and it doesn't imply that it's any stronger that standard blotter. you certainly couldn't expect to know if somebody was on it easily.

the suggestion that mescaline can be effectively delivered by them is apparently also false: http://www.erowid.org/chemicals/mesc...ne_info2.shtml

[MonkeeMan]

I too have done microdots, and as with any form of LSD I think you would be able tell they were on something besides caffeine.