Share a Contact with several users. HOW?

Share a Contact with several users. HOW?

Hello All,

I have a crm account with 3 users in total.

User 1 - ME
User 2
User 3

I have uploaded several contacts from our previous crm setup. I have imported them fine but i would like to share them with user 2  and user 3.

At current when they log in the contacts i have added do not appear in there contact list. Is this possible?