How can I share my report with external user?

Hi All,

I'm a newbie in Power BI. I want to share the report I have created with one of my external clients. I have PPU License. 

Can anyone please guide me on how to share the report with somebody who is outside the organization (external email id)? I am aware that they will have to be added to Azure Directory to share the report. Here the question is, can they access the report without having PowerBI License or do they get prompted to have a trial version of Power BI if they want to access the report?

It will be a great help!

I really appreciate any help you can provide.