Didn’t the iPhone app used to have a ‘Share’ button that let you send not the video file itself but just it’s URL via text or email or iMessage etc. I can’t find it anymore. I have to open YouTube in Safari and then the share button (looks like a sideways V with dots) appears. Did they remove it from their iPhone app just to annoy non-Android users? 
it’s still there on the ipad. it should be the same since it’s universal…
Share still brings up the same ol’ options for me (button on the bottom right). But I still haven’t updated my iPhone to iOS7 yet. It’s different if I open a youtube link in Twitter (how I generally seem to end up at youtube), the Share options are from the Twitter app and are more limited.
Hold the phone vertically. It’s right there on the bottom. There should be a “+” on the left, and three dots connected by two lines on the right. Click the dots.
Oh yeah, duh! Thanks!