To send Lumens which is currency need a Public key of Recipient.
Follow these steps;

1. First you need to login to your account with your secret key;  or use Generate Key button to create your new account

2. Then grab the public-key of the the sender and enter it into the following box enter amount of Lumens you want to be sent.
Try this Public key in Recipient if you are doing this for first time;

3. Memo field, lets you enter description or reason for sending the money.


Secret Key - Is to be kept secret, it lets you access your account and store your Lumens ( generally starts with S followed by 55 characters)

Public Key - Is to be shared with others, with those who wants to send Lumens to you.

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