while waiting for the case to be heard,

one can fall asleep, i know atleast a dozen such lawyers, quite senior mind you, who would very easily doze off in a bustling court room, at 11 in the morning, sitting right under the nose of the judge. As if that's not enough, this would be accompanied by loud snoring, much to the embarrassment of the junior/associate sitting next to this prince of the dream world.

Actually I know of a lawyer who would fall asleep WHILE his case was being heard, but when asked a question by the judge would promptly rattle off the correct answer!! due credit to his silver hair!

with the use of modern technology, read while in court, play games, chat, generally faff over the internet!

watch what the judge is doing, listen, observe and judge the judge!

watch what the staff is doing, if not any of the above then animatedly giving non verbal opinions on the opinion of the judge on the case being heard

count the number of times the judge/lawyer arguing repeats a certain word and then make a mental note to use that word while arguing

and in the courts of bombay, like in the trains of bombay, be vigilant and leap the moment a seat looks like it is about to be vacated!!