If you trust them then go ahead if you want to! There is no particular way to tell your friends that you do, just tell them! In private if you wanna feel more secure or whatever haha. You could even do it casually while in school and you see him/her, point him out, say he's … Read more
Go outside. You will enjoy it more than walking to no were.
Depends on the person. For many years I've been riding a recumbent exercise bike at home. Still do 9 times a week. In fact I killed my old bike and just had to get a new one a few weeks ago.