*Adjectives*
* Handsome
* Good-looking
* Attractive
* Charming
* Debonair
* Stylish
* Well-groomed
* Chiseled
* Rugged
* Alluring
* Magnetic
* Captivating
*Phrases*
* A face that could launch a thousand ships
* A face like an Adonis
* The perfect specimen of male beauty
* A real catch
* A lady-killer
* A heartthrob
* A dreamboat
Of course, these are just a few words and phrases that could be used to describe Johnny's appearance. The exact words that are most appropriate will depend on the context in which they are used.