ITunes songs syncing to iPhone?

I was having trouble making all my songs on my phone available offline, like they are on my computer. I plugged my phone into my computer and had everything sync, but one song won't sync onto my phone. Why won't just this one song show up on my iPhone? I bought it through iTunes!

What is this grey bar on my iPhone screen?

Today I bought a brand new iPhone 6 16gb and whenever my finger slides across the home button this big grey bar slides down from the top of my screen. I've looked it up but can't find anything so please someone help! My entire screen slides down and I have no clue what to do. What is this grey bar on my iPhone screen

What is this grey bar on my new iPhone 6?

Today I bought a new iPhone six and for some reason when I stroke the home button with my finger this random grey bar pulls down from the top of my screen almost like a message bar when I've received no message, please help!

How good is my downstairs size?

Well I'm finally there where my "stick" is going to used all the way. No I'm not 12 or a freshman in highschool but I'm not 20 either. I'm at an awkward age of 15 but I'm too mature for the 15 year olds so I hang with 18 or 17 year olds since I have had a much older sister who matured me early and I'm just used to hanging with her friends. So in the dating life I tend
To date women around 17 and up but the downside to that is that they are usually more experienced and since I'm younger I havnt fully grown. The "stick" is inbetween 6 and 6.5 inches but it's closer to the six and a half. Almost 2 inches wide at its widest part. I'm very insecure and I feel really small. I have had a past girlfriend that her and I went to third base and she said I looked big but i don't know. Please don't give me the whole "size doesn't matter thing" it will not hurt my feelings if I get some truth. Thank you very much and sorry for bad grammar because I'm using an iPhone.

Iphone home button fell off and i LOST it?

What do i do? I can't exit apps or anything its so annoying. Is there anything i can do to make it work? Like maybe putting something to replace it because i don't want to go get it repaired because its expensive. And its not even a working phone so its not worth spending that much money on, i just use it for apps, music and pictures. I have to go to a concert in 2 days and really need it working to take pictures of the band.

What uses up data on an iPhone?

If cellular is turned on without using Wi-Fi, is data constantly being used? I'm confused when data is actually being used. Like, if I get a notification from Snapchat, does that take up data? And if I have an app like Snapchat open, am I using up data? Or only until I send something?