You know, like this:
...Or like this:
Another classic. Be proud of those lost teeth, kid.
But unless you can beat this guy:
I'd generally consider keeping my eyeballs in their sockets more important than winning a funny-face competition at a restaurant with a 5-year-old, but that's just me.
or this guy:
His ears give him an unfair advantage.
You have no hope of ever, ever beating this tiger: