Despite above mentions of his artistic skill, Will is pretty good on the Lute. Actually, it's a mandola. He's also made 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 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 in the entire series.