Send a contact request to the member you want to add:
One way is to click "Add as contact" in the top right-hand corner of the member’s profile.
If you’re a Premium Member you also have the option of writing a message when you add a contact.
Under “Your data sharing settings” you can choose which of your personal details (e.g. contact details, date of birth) you want to share with this person.
The member will be notified about your request and can then choose to accept or reject it.