You can make it even easier on yourself by learning or saving the shortcodes for your most often used SMILES. If you type colon ( : ) and yes in, all one string, you'll see four choices pop up. The one you want is 2nd one down.
If you type colon ( : ) and grin in, you'll see your other emoticon you used above pop up, I think also 2nd one down. Many of the shortcodes are fairly intuitive.