[verb て-form]
Optional sentence-ending particles:
Using a verb in its て-form alone is one of the most common ways to make a casual request in Japanese. It is a shortened version of 〜~てください, with ください omitted. Because it drops the polite element, it sounds more direct and informal, making it appropriate among friends, family members, and close acquaintances.
The tone of voice plays a big role in how this form is perceived. Said gently with a rising intonation, it sounds like a friendly request. Said sharply or flatly, it can sound like a command.
Adding the sentence-ending particle よ can make the request feel more insistent or encouraging, while ね softens it.
To explicitly ask someone to do something for you, you can add くれる (or its polite form くれますか) after the て-form. This is still casual but slightly more complete as a request.
Be careful not to use the bare て-form with strangers, superiors, or in formal situations. In those cases, use 〜~てください or 〜~ていただけますか instead.