How do I add Smileys to my emails if I have a Yahoo and Gmail account?

Thanks!
How do I add Smileys to my emails if I have a Yahoo and Gmail account?
When you are composing an email, Look above the text box and you will see Highlighter, Text Colour, A yellow smiley with sunglasses, Text Size thingy, Bold, Underline, Italics, a button with earth and paperclips, Stationary, Insert Line, and more. Click on the smiley guy with sunglasses and you will see 40 smileys! Click on a smiley you want and it will pop up in your text box.





To change the size of the smiley you need to click on the smiley in the text box and click on the corners of the box around the smiley and expand it.





I hope I helped you! Good luck!