Ever had someone state emphatically that they do not have any spiritual beliefs at all?
You could try just talking them around but many people today respond better to visual communication as well as just talking.
Youth today have an attention span of about 1 minute. Just look at their browsing habits.
Someone that has just tried to shut you down and end the conversation probably can only stand about another minute or so before they walk off. What can you do in a minute?
Well there is your trusty 15/30/60 second testimony you could do or there is this simple circle diagram below that you can try?
Does God really exist?: https://vimeo.com/704871350