What does "click" mean?
Native speaker’s answer
Rebecca
In the informal sense, to "click" with someone means to get along with or have a connection with someone. The speaker has used this expression to state that a person only needs 30 seconds to figure out if they will get along with or connect with someone. Ex: It's hard to find someone you click with on a dating app. Ex: My mother and father really click. It's easy to see why they have been married for so long.