How do I send a contact's details to someone in Skype?

You can share a friend's contact card with any of your other contacts right from a chat, or from their Skype profile. Sending and receiving contact details is not available in Skype on Android 4.0.4 - 5.1.

To send a friend's contact card to someone:

From within a chat:

1. Select the  Contact card button. 
2. Select the contact(s) you want to share, and then select Send.

From someone's profile:

1. Go to the profile of the contact you want to share. 
2. Select Share contact. 
3. Select Send next to the contacts you want to share with. 

Drag and drop on desktop:

1. Open a conversation of the person or group you want to share a contact with.
2. Find the contact you want to share in your  Contacts or  Chats.
3. Simply drag and drop the contact into the conversation window.
4. Choose to share the contact info or add the contact to the chat. If you add them to a one-to-one chat, this will create a new group conversation.