11.   They could catch up on old times, laugh at some silly private jokes.

a. + joke >>共 521
bad 5.01%
old 4.50%
little 4.04%
good 3.36%
running 2.79%
dirty 2.73%
cruel 2.62%
off-color 2.33%
same 1.88%
private 1.54%
silly 0.63%
silly + n. >>共 435
thing 6.65%
question 4.63%
point 3.83%
mistake 2.52%
game 2.11%
season 2.01%
idea 1.91%
name 1.41%
penalty 1.21%
rule 1.21%
joke 1.11%
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