Express a desire for someone else to do something; 'I want you to', 'I would like'.
Long explanation:
The ~てほしい grammar point is used to express the desire for someone else to do something. It can be translated as 'I want you to' or 'I would like' in English. The formation is created by attaching ほしい to the て-form of the verb. Remember that this structure is used to express desires for others, not for oneself.