Hi everyone. So, as you may imagine from the title, my native language isn't English. And even though I write and speak English pretty well, when it comes to "in" and "on", sometimes I have trouble. For instance, in the novel than I'm writing, a character receives an update for the apps of his cell phone. In this case, should I say the apps on his phone, or the apps in his phone? Another one. My MC is in a concert and thinks the singer sounds just like in/on the albums. So, does she sounds just like in the albums or like on the albums. Last one. I know that when a person drinks from a straw, he or she puts the straw in his mouth. but if I were to say lips instead of mouth, would he put the straw on his lips or in his lips? And why does a person sits in the driver's seat but seats on a bar stool instead of in a bar stool? Are they interchangeable? I'm sorry if some of these questions seem stupid or obvious, but well, I guess asking them is the only way to learn. Thanks in advance!