You just need a good laugh.

Whoops your shoelace is undone.

Hey hey hey it wasn't me was it? Say again? You shoelace isn't really undone? Well that is curious...

You have something on your shirt. Yep right there in the middle. Go one just look down you will be able to see it. What do you mean "I am not an idiot"? I can literally see it, look it is right there! Do I promise to not flick your face when you look down? Of course...

Hey hey hey it wasn't me was it? Say again? How could you have seen it was me? You were looking down at your shirt. Ok it was me, or maybe it wasn't - you were looking down so you will never know.

It says "gullible" on the ceiling. Why does it say "gullible" on the ceiling? How on earth am I supposed to know? I can however tell you for a fact that it says "gullible" on the ceiling. I know you are not gullible. Yes I know you don't fall easily for things. Yes I know you want me to stop with these "games", however they are not games... it really does say "gullible" on the ceiling!

See... I told you it said "gullible" on the ceiling. Your trust in my is restored? Excellent I was just about to... hold on a second, why did you ever doubt me?

I what? Play to much? I am not sure what you mean? I have an insatiable desire to annoy you? Well I can't see I have heard that before. I am meeting your eyeline. What are you talking about? No I am looking you straight in the eye, I am not staring at your forehead. Hey hey hey no need to get up all in my face like that!

You have something in your teeth.