When I substitute taught I went off what said student was wearing 'ex you in the yellow shirt' assuming there's no uniform, if there was then I would tap their desk or just walk up to them and get attention. Usually direct is best anyway. I hated when the roster would be outdated so you could end up accidentally deadnaming students and get everyone off to a bad start, going by lastname helped but it might set a weird tone.
When I substitute taught I went off what said student was wearing 'ex you in the yellow shirt' assuming there's no uniform, if there was then I would tap their desk or just walk up to them and get attention. Usually direct is best anyway. I hated when the roster would be outdated so you could end up accidentally deadnaming students and get everyone off to a bad start, going by lastname helped but it might set a weird tone.
I'm looking forward to being a full teacher because once I learn students names this won't be a problem.