The guy is an idiot regardless of what drugs he's on. I don't even get the point of something like this. Are we to glean some insight from any of these behaviors?
I have never taken ketamine (except perhaps once when I was 16 years old administered as an anesthetic for a broken arm about to be set, not sure what it was but it put me on my first drug induced 'trip') but I have used coke and LSD. They're about as different as skating in an ice rink vs ski jumping. Both are very dose dependent but the latter is especially "setting" dependent as well. I can tell you if he was on LSD, it was a very low dose. On a medium to high dose he wouldn't even be standing up, let alone engaging in manual skills or interacting socially.
Cocaine is a stimulant and is often used in social settings. It gives one a bit of a rush and everything looks mildly 'sparkly' or 'frosted'. It can be fun but it has a high abuse and addiction potential. Not to mention it is very expensive.
Low dose LSD can also be used in social settings--raves and such--but I don't recommend it unless you're young and foolish. The real benefits of LSD come from medium to high doses (250 to 500+ micrograms), taken in a safe, controlled, predominantly non-social setting where the individual can not only observe the sensory enhancement and synesthesia but the psychedelic (mind enhancing) properties as well. The LSD experience is very complex with many different facets to it, all impossible to convey accurately to anyone who hasn't 'been there'. The real value of LSD, taken in the right setting by a person of sound mind, is that it can be revelatory. A lot depends on the user; if he is not well educated or naturally intelligent it could all seem meaningless and random, even terrifying. The inquisitive mind, the seeker, however, may find himself in one (or many) completely alternate universes that reveal much about how we're all socially conditioned to perceive "reality" in a rather limited way. Useful, yes, but limited none the less. There is far more to know than we know both within ourselves and beyond.