Go over your script and practice saying it out loud to see how it flows. Make any changes to the script that you need to so it's easier to say. Try running through your lines faster or slower to see how the emphasis changes. If you're talking directly to the camera, practice your delivery until it feels like you're naturally having a conversation. If you're working with multiple actors, run through the scenes a few times to rehearse your script. Don't be afraid to get rid of lines that don't work as well you thought they would. After you hit record on your camera, do your best to deliver your lines without hesitation. If you screw up, keep the camera running and just start the line over again. It's okay if you stumble on a few words since you can edit them out later. After you get a good take, read the lines at a different speed or with different emphasis so you have the option to use those shots later on. Try to stick to your script or outline so you don't lose focus while you're recording. If you're shooting comedy videos, try to improv a few lines since they could be funny when you edit them later on. That way, you have an option for what jokes you want to include. Videos like travel vlogs, short films, and educational content usually have extra footage called B-roll that's used to fill in any gaps. You may use additional footage to transition between topics in your video or to add visual interest. Make sure to include any shots that you may want to add later so you can put them into your video during the edit. For example, if you're filming a video about a trip to Paris, you may include footage of the Eiffel Tower or the Arc de Triomphe to show off the landmarks. Be sure to articulate each word while you're speaking so you're easy to listen to. Stay at a moderate volume so your microphone doesn't peak and muffle your audio. It's okay if you screw up a line or two since you can always rerecord it. At some point while you're recording, be sure to ask viewers to like the video and subscribe to your channel. You can tell people in the intro of your topic or at the end of your video. That way, your video and channel can get more popular so other people will see your content. You may say something like, "And don't forget to click the thumbs up if you like this video and subscribe to my channel if you want to see more!" Asking people to like and subscribe may not work well if you include it in short films. You can also ask people to like and subscribe by including text at the end of your video as a reminder.

Summary: Practice your video a few times before recording it. Record multiple takes of the video so you can choose different shots. Film extra footage so you can include it if you need to. Speak clearly so people listening can understand you. Ask people to like and subscribe to your channel so you can build an audience.

Rather than just saying "hello" or immediately starting on your pitch, start your call by greeting the recipient professionally. Use the recipients name in your greeting, trying to remain as formal as possible. For example, try "Good morning/evening, mr./mrs./ms. ____." Afterwards, immediately introduce yourself by name and introduce your business. Use only your first name, unless you are the owner of the business. Say briefly what your business can do for them, but not exactly what you offer. For example, say "we save local businesses money" instead of "we offer cheap accounting services." This makes the recipient curious about exactly how you can save them money. In many cases, you will have a standard script to follow. However, it can be difficult to read off the script directly with any real fluidity, and you may lose your place if you are interrupted. To remedy this problem, memorize your script but only keep a list of key points in front of you. This will help you pick up your place and make your speech more natural. Thank them for taking your call. Promise that you won't waste their precious time and that you will soon let them get back to their busy schedule. Bring up the reason for your call as a question, like "would you be interested in a product that you could lower your accounting costs while maintaining the same quality?" Focus on what your product can do for them, not the product itself. If you're not talking to someone who can make business decisions, keep working until you get to them. Use questions to assess the prospect's needs and identify how your product or service can remedy them. When pitching your product or service, focus on the benefits you can provide your customer. Tell them how it can save them time or money, increase profits, or improve their lives and happiness. It may help to explain what your product has done for others, with numbers to back this up. If possible, describe your benefits in the same language (the same terms) in which your prospect described their problems. This builds trust between you. Have your prospect commit to a meeting for more information or to see your product or service in action. Ideally, you'd close the sale over the phone, but in many cases this is just not possible. If nothing else, encourage them to consider your proposition and give them contact information so that they can reach you if they decide they want to know more.
Summary: Have a standard, professional greeting. Follow a guide. Thank the recipient for their time. Identify the prospect's needs. Pitch your product. Make them commit.