When I send emails to contacts in LinkedIn, can I talk about just business or anything?

AJS: When I send emails to contacts in LinkedIn, can I talk about just business or anything?
I am very inexperienced with using it and

I know an old colleague whose on there

that I would like to talk to on there.

ANY ANSWER, WOULD HELP, PLEASE!!!

AND THANK YOU…..!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers and Views:

Answer by Bubbie
Connect with the person and exchange personal emails.
Search the WWW for ‘using linkedin’. So many articles with Tips!