Hi,
You can welcome individuals from your organization that don't have Salesforce licenses to utilize Chatter. Welcomed clients can see profiles, post on their sustain, and join gatherings, however can't see your Salesforce information or records. 

To welcome individuals to Chatter: 

Snap Invite People to Chatter (http://kosmiktechnologies.com/sales-force-training-in-hyderabad/) on the People page or Invite Coworkers! on the Chatter page. 

To send solicitations from Chatter, enter email locations and snap Send. 

To send solicitations utilizing your own email account, click send your own particular email welcome. In the event that you have a default email customer set, an email containing a welcome connection opens in your mail program. Else, you see a welcome connection that you can reorder into an email. 

You can likewise welcome colleagues to join an open gathering regardless of whether they don't utilize Chatter yet. Moreover, proprietors and directors of private gatherings can send solicitations. On the off chance that client solicitations are empowered, proprietors and administrators can likewise welcome clients. When somebody acknowledges a challenge to join the gathering, they join Chatter too. 

Snap Groups and tap on a gathering name. 

In the Members area on the gathering point of interest page, click Invite People. 

On the off chance that you are the gathering proprietor or administrator, you can likewise click Add/Remove Members, at that point click Invite them to Salesforce Chatter!. 

Enter email locations and snap Send.
 for any sugessions tellme?