Despite above mentions of his artistic skill, Will is pretty good on the lute. Actually, it's a mandola. He also made up a song about his mentor, Halt.
When Will is awarded the Silver Oakleaf in Erak's Ransom, Alyss and Evanlyn are the ones to place it around his neck. Upon doing so, both of them impulsively kiss Will's cheeks and then glare daggers at each other.
Halt's obsession with coffee is often brought up and is just as often hilarious.
Not to mention his preference for honey in his coffee, which is treated by the other Rangers (including Crowley and Gilan) as a Bizarre Taste in Food.
In the ninth book, we are given what is possibly the most hilarious conversation of the entire series.