i'm wondering how to create text above a character's head

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Question about creating floating text above a characters head

I was wondering how to create floating text above a character’s head, so it looks like one is asking ‘which number’ for something, and the 7 characters to respond with identical responses of 2, and the other character with a different response of 1. I’d like to try this in the sequencer. It is probably incredibly simple, I literally want the following to appear as text above their heads for a few seconds and then disappear interviewer: which line character 1: line 2 character 2: line 2 etc……