Plautus’ writing, in ‘Pseudolus’, uses a mixture of comedy to create such a humorous play. One display of this, is Simia’s reply to Pseudolus encouraging Simia with a reward: “And if I don’t succeed, the executioner can treat me to a capital reception.” Plautus here makes the rather serious situation funny, with the talk of death; and Simia being aware of the consequences, making Pseudolus seem ignorant to Simia’s intelligence. There is also an essence of silly humor, such as when Simia comments on Ballio walking “sideways like a crab”. Funny descriptions and bantering of other character’s in the play, serves as a good platform for Plautus to make his plays comical. Once Simia encounters Ballio in the extract, he calls out to him: “You there! Billy-goat-beard…”, again bantering Ballio’s character. The funny interactions between other characters and Ballio, prove funny due to Ballio’s higher position, and how easily he is degraded by the other dudes.
Note to Cotter: Hey Sir, I don’t really understand how to access humor. Am I on the right track? Didn’t know what else/how to write about this
Lucas Wilkinson's Classics Blog 
You are in the right area with this.
Approach the extract like last year: in order and think about each of the aspects of humour that are raised – verbal, physical, puns etc..