STAR method for video interviews
Situation, Task, Action, Result. In a timed recording, the action and the result should take most of the minute.
Why STAR still works when nobody is asking follow-ups
STAR is a way to tell a work story so a stranger can follow it: the Situation, the Task that was yours, the Actions you took, and the Result. In a live interview you can add detail if they look interested. In a one-way interview you get one window. If the result never arrives, it is not in the recording.
How to spend the time
For a two-minute answer, a useful split is roughly 20 seconds of situation, 15 seconds on the task, 60 seconds on your actions, and 20 seconds on the result. Leave a few seconds so you are not cut off. For a 90-second answer, cut the situation first. The reviewer needs the action and the result more than the backstory.
The task is the part candidates skip. "We had a deadline" is a situation. "I was the person who had to get the work finished" is a task. Say it out loud.
A short example
Situation: our student group had a sponsor report due on Friday and the draft was still a shared outline on Wednesday. Task: I had said I would turn it into a finished document. Action: I split the remaining sections, sent each person a two-line brief, and edited the full draft myself on Thursday night. Result: we sent it on time, and the sponsor replied with two questions instead of asking for a rewrite.
That answer does not invent a percentage. It has a result the listener can picture. If your real result is "we submitted it and passed," say that. Do not upgrade it.
What to do when the question is not a story question
"Why this company?" and "Tell us about yourself" are not STAR questions. For motivation questions, make two specific links between you and the role. For "tell us about yourself," use present, past, future. You can still end on a result, but do not force a four-part story onto a question that asked for a reason.