He is portrayed as straightforward and direct , but sometimes makes witty jokes with much of the humour lying in his ability to deadpan .
Cho serves as the polar opposite to Patrick Jane , but is keen to learn his powers of observation .
Cho is portrayed as straightforward and direct , but sometimes makes witty jokes with much of the humour lying in Cho 's ability to deadpan .
Cho serves as the polar opposite to Patrick Jane , but is keen to learn his powers of observation .