The best way is to include information about yourself under a lead list and add a link to a landing page that includes more info like images and vCard to download.
I have a landing template which you can copy. Login as advertiser and Click on landing pages and creat a copy by entering the ID number 2686 then you can edit the info and upload your vCard file.
Login as advertiser
Click on contacts > Create new
Give it a name and a keyword
Select Lead DB
Enter your personal info in the reply message box
Include a link to the landing page
Notify to yourself when someone text it (optional)
Once you are happy with the landing page you can save it as a template to all your clients under the admin dashboard.
You can create a vCard file using any email client like outlook or Gmail