Do you wear earphones or headphones?

Both, depending on the situation

Bluetooth headphones. I cut grass, work around the house. Can’t hear the neighbour kids yelling. It’s great. Ear buds always fall out and they don’t block out noise like headphones.

I mainly use headphones.

High quality Hauwei wireless ear buds. 

since my ears are located on my head, yes. 

i wear both. Wired earphones serve as antenna when I listen to radio of my portable MP3 player. Wireless headphones when I listen to TV without turning on the amplifier. 

Earphones and Headphones are the same thing. Earphone / Earphones is the just the older, original name.

You probably mean Earbuds or headphones??

The only time I use earbuds is on a plane, I have some noise cancelling ones that make it like the engines are switched off..

Reference:

[Headphones are also known as earspeakers, earphones or, colloquially, cans. Circumaural ('around the ear') and supra-aural ('over the ear') headphones use a band over the top of the head to hold the speakers in place. 

Another type, known as earbuds or earpieces consist of individual units that plug into the user's ear canal.]

headphones over the ear model with noise reduction , sennheissers . a good pair makes your walkman sound getter that any old earplugs , best to get a good brand , there worth it ..

I wear over-ear headphones while at home where I can sit and enjoy a better experience. They can be bulky and wired because I don't need to move around.

When I'm out and about I use wireless earphones because they're more portable and easy to simply slip into my pocket when I don't need them.

Headphones, but rarely, 

though I did buy a cheap set of insertables for special situations. 

Overall, I prefer listening via speakers.