Going out

Ever notice if you go out with a big group, you need people to fill certain roles?

For example, every group needs a:

Idea Man/Woman
This is the person who says, "Why don't we go to..."

Let's Go Guy/Girl
The other crucial component to going out in a group, this person mobilizes the group. "It's time to go to..." This person can be the same as the Idea Man, but not necessarily. Typically this role is filled by a tall or at least very recognizable person. It may be their role later in the night to mobilize the group again.

Then, there are some less essential roles:

Whatever You're Doing Dude/Dudette
Fairly obvious -- "Where are you going?" "Whatever you're doing." This person is the right hand man to Let's Go Guy. If a group has multiple "Whatever You're Doing Dudes" it's beneficial since the group mobilizes much more quickly.

Meet You There Chick/Guy
There's always some person who "will meet you there." Usually a woman, this person doesn't always make it to the final destination. But they'll say they will. Also known as, "Call Me When You Get There Chick/Guy."

Gotta Go To The ATM Man/Woman
Inevitably, one person will not have enough money before the plan set forth by Idea Guy/Girl is put in motion.

Camera Guy/Girl
Someone is bound to have a camera and will try to capture embarrassing moments.

Finally, there's:

Tagalong
The person nobody wants around but nobody had the heart to tell them.