Dear Jeffery, this person should be someone you are comfortable with and share similar interest s. If you all love to sing you can also build a friendship on such.
Just like the 6 characters in the Zathu drama who formed their friendship because of their mutual love of music. And when they became friends, they got to know each other well, and began to support each other and have fun together too.
This is just one example but your interests could be anything that you both enjoy doing. If you are supportive of each other, are able to agree and respect on another then that also shows a certain individual can be your friend. Bear in mind that its doesn’t always work .