He keeps it random to keep her on her toes. Like a master pranker would.

“Bobby. I’m not saying I don’t like what you do, but I’d prefer it if you didn’t freeze the cutlery into an ice block and then steal my snack.I know it was you.Warren.”

       “What? No, I mean--” it hits him, causing a small laughter. “Ah, dude! That’s frick'n great. Legit, you’ve got awesome powers. All I can do glow. I’m a glorified glow stick.” 

“It’s all in the delivery Icepop. But you could also just start with, “Hey, insert compliment here.” And see how that works for you. What aboooout him.“ Iced coffee still in hand the blonde pointed one finger out toward a cute brunette stepping up to place an order at the counter. ”

The look from Warren should have said enough about what he thought of that statement in regards to the other. “Every time you make an ice slide you flood the entire room it’s in. Do you need me to go on?”

“You know what, one more comment out of you and you can sleep on the floor. You literally can’t even feel the cold, so stop. This is already weird enough, lets not make it worse.”