There could be a few reasons why your earbuds might fall. You can gently pull your earlobe outward and use your opposite hand to insert the earbud gently. Never force them in your ear to avoid injuring yourself or damaging the earbuds. Also, please ensure that the ear tips are the right size for your ears. If they are too small, they will not create a seal and fall out easily. If they are too large, they will be uncomfortable and may also fall out. Finally, if you are sweating or your ears are very oily, this can also cause the earbuds to slip out. In these cases, it is best to clean the earbuds and your ears periodically to prevent this from happening.