:salam2:
First talk what you have in common or common grounds. Then proceed to la illaha il Allah, tawheed. This is the greatest thing in Islam and the unforgivable sin is "shirk". Then proceed with the prophets PBUT, while leaded to last and final messenger PBUH. Then go on to the greatest miracle of all time : QURAN.
As for getting into things like what the prophet disliked and avoided well that should come later when they are ready for it.
The main object is to focus on there is no diety worthy of worship besides Allah. No idol, no person or grave, no Women/Man worship, lucky charms, etc ....
If you could accomplish that, then you will be doing what many scholars of Islam focus on with students of knowledge.
every body is a little different about this,
but remember they will not want to listen to music, once their faith grows and they see good examples of pious muslims past and present.
Also to add: a person who believes in God swt, will always do the best he can to be a God-fearing person, Taqwa.