The following guide explains how to reveal your private key. Under most circumstances, this won't be necessary unless you want to import your wallet to use with MetaMask (or other wallet). Never share your private key with anyone or enter on an untrusted site.
Click Reveal Private Key (Advanced)
Enter Backup Words and Click 'Reveal Private Key'
Private Key Revealed
IMPORTANT: Again, never give out your private key to anyone. Only use trusted sites and wallets like MyCrypto and MetaMask. If you want to save your private key, do so only in a secure password manager like LastPass or 1Password.