First, write an elevator speech script. Your speech can be a self-introduction for micro-interview or networking purposes, or a sales pitch for a product or service of your choice.
Then rehearse your draft out loud till you feel your presentation is relaxed and genuine, and is complete in 90 seconds or less.
Next, make a video of yourself delivering your speech. You can use a digital camera, smartphone, computer application, or free software such as Flipgrid to make your video. Feel free to ask someone for help, if needed. To access collegial feedback on your speech, you can post a link to your video in this general course discussion forum if you are comfortable doing so.