1.First we go to the myetherwallet.com.In this page enter a password as you want.
2.The site gives us a Keystore file.We download this file to our computer and store it.
3.Here we have got a Private Key.This key and Keystore file is very important to access your wallet.Please make a backup of them.
4.Here we choose an option to enter to the wallet.We have got two option right now,because we have keystore file and private key.
5.We choose private key but you can choose keystore file option if you want.We enter our private key in the blank and click Unlock.
6.That's all.Our ethereum address writes in 'Your address' section.
IMPORTANT : Your Keystore file and Private key is very important.As we mentioned above make a backup of your Keystore file and Private key.You are going to use ethereum address in transactions.You can share it for transaction or airdrops(We are going to mention about airdrop).DO NOT SHARE YOUR PRIVATE KEY AND DO NOT LOSE IT !!