Click on the heart symbol. Click "Select" then "Copy." ... Right-click on the area of your document or page where you want to add the heart symbol. Click "Paste." The heart symbol now appears.

Press "Alt-3" or type "&;#9829;" (without the quotations) to display a solid black heart symbol. Copy a heart symbol from an online source (link in Resources). Paste the shape into your tweet.

In the ‘With’ box, copy and paste a heart symbol or use the ‘Symbol’ button to insert one. Click ‘Add’ and then ‘OK.’ Now, whenever you type “<3”, it will automatically convert ...