Just wanted to add a couple of different options. First, to answer the question in this thread, I love the verbal teasing aspect when I'm tickling. I love to tell a tied-up guy what part of his body I'm going to tickle first (or next) and really build it up. For example, "I think I'm going to tickle your armpits now. I'm going to run my fingers all through them and around them, and then I'm going to poke your most ticklish spots there. And while you're struggling and pulling to break free, I'm going to tickle you harder to get you to laugh. And when I think you've laughed enough, I'll tell you where I'm going to tickle you next." Of course, this works best while I'm slowly teasing his armpits so that he knows he's going to get it.
My other comment is that I absolutely love getting HIM to say things. It's fun enough to ask him, "Are you ticklish?" and then make him admit it, either voluntarily or through...duress.
But then it's fun to ask, "How ticklish are you?" and wait for his answer. I can either tickle him and ask if he's sure he's that ticklish, or if I'm a bit fiendish, I'll tickle harder and say that I think he's more ticklish than he thinks. I like to make a guy add adverbs or adjectives when I ask the question over and over, tickling him each time I ask again. I enjoy answers like "very ticklish," morphing into "extremely ticklish," eventually changing into something like "VERY EXTREMELY FUCKING TICKLISH!"
I already mentioned that I enjoy telling him where I'm going to tickle him, but I also like to hear him say it. "Where am I going to tickle you?" Depending on the scene, I may tickle the part that he names--they usually don't answer with their most ticklish spot, though. If I'm more devilish (are you seeing the trend?) and have an impending need to hear laughter, I'll ask him to name another body part. This usually works best on a repeat ticklee, who knows that I know his hot spots. When he names the body part that I'm dying to dig in to, I then ask him how much I'm going to tickle him there and wait very impatiently for his answer. And then I ask him how long I'm going to tickle that part of him. With each answer, he has to say the full sentence such as, "You're going to tickle my sides, very hard, for 10 seconds." By that time he's talked me into it.
Okay, sorry for the long reply, but this thread had me intrigued. And apologies now, because I'm a male, and I know how "ew" m/m is to many here.