What are ways to get student's attention other than using a whistle or turning the lights on and off?

To capture students' attention, try using a unique signal, like a specific hand gesture or call-and-response phrase. Incorporating props or visual aids can also help engage students effectively. Additionally, varying your voice tone or using a short, intriguing story related to the lesson can pique their interest and focus. Lastly, incorporating music or sound effects relevant to the topic can create an inviting atmosphere that draws attention.