By using this app, you can do the following steps to unlock your pattern locked device:

Apart from that, you can also try using the default recovery option provided by your device manufacturer. This procedure may differ for each device manufacturer and model. You can find a specific guide for your device by searching the manufacturer's website or using a search engine to find the appropriate step-by-step guide.

Please note that the method above is intended to help users who have forgotten their own device lock pattern. Using these methods to unlock devices that are not yours or to engage in acts that violate the privacy of others is unethical and against the law.