How to Pin a Tweet to your Profile
Your Twitter profile shows the world what kind of person you are. You can pin one of your own tweets to the top of your profile page. It can be your favorite tweet, it can be your first tweet ever or your most retweeted one, any of your preference, as long as it is your own tweet (you can't pin your retweets of others' tweets). Here is how to pin your tweet.
How to pin in a Tweet to your profile
Step 1: Go to Twitter and log into your account.
Step 2: Click on your Twitter name, username, cover picture, or profile picture in the upper-left corner of the page to go to your profile page.
Step 3: Find the tweet you want to pin and click the Down arrow icon.
Step 4: Select Pin to your profile page from the drop-down menu.
Step 5: Click Pin to confirm your action.
The tweet is pinned to the top of your profile page. It will always be at the top of your profile page until you unpin it. To unpin it, choose Unpin from profile page in the More menu.
Step 1: Open the Twitter app.
Step 2: Tap on your profile icon in the upper-left corner of the screen.
Step 3: Tap Profile to go to your profile page.
Step 4: Find the Tweet you want to pin and tap the Down arrow icon next to your Tweet.
Step 5: Tap Pin to profile.
Step 6: Tap Pin to confirm your action.
This Tweet will appear at the top of your profile and replace any previously pinned Tweet.