How can I use cheesy pickup lines without coming across as insincere?

The key to using cheesy pickup lines without seeming insincere is to do so with a genuine smile and a light-hearted attitude. Avoid using them excessively or inappropriately, as it may come across as disingenuous or pushy. Pay attention to the other person’s reactions and be respectful of their boundaries. If they seem uncomfortable or unresponsive, it’s best to switch to more natural conversation topics.