I've done the register of all the students - 62, a smallish size crowd today. Not that I'm counting or anything. It's only five past nine.
I've read the AS English Language paper, all 16 pages (okay, the last two were blank). Not that I'm counting or anything. It's only ten past nine.
I've counted all the students with glasses (six, since you ask) and those who are left-handed (ten) and I'm sure that the students taking Probability and Statistics could compute the Pearson correlation coefficient of those (I've no idea what that is). It's only quarter past nine.
I could count the number of ceiling tiles or the number of brackets holding the pipes to the wall - but that would be nerdy.
I could compute the number of squares there are in the cricket nets - but then I might lose count part way through - too risky.
Thing is - I'm going to be here till eleven-thirty - so I better think of something.