This is on my LinkedIn Contact Settings:

What do you need me to do to help you?
I have copied this from Reid Hoffman's profile.

(1) why this request will improve the world in some way (as I have a strong interest in these projects),

(2) why my expertise is particularly needed for this (not just that I happen to be around),

(3) what my interest might be in the particular project,

(4) what makes this connection useful or important to you.

Thx - hope that's helpful. Good luck!

I think this is a great way to connect with people. I hope people copy it from me. Just like I copied it from Reid Hoffman's profile!