Problem with Nexus 4 gestures in notification bar

Hi everyone,

i just recently switched from Iphone 4 to Nexus 4. Anyway...

Can anyone of you perform gestures inside the notification bar!?

For example. When i want to reply directly to an email within the notification bar, if i swipe down with two fingers, nothing happens. if i use one finger down or up and down. just nothing happens. if i hold and press on the notification it opens a context menu with "App-Details"...Whats up with that? are you supposed to do this stuff in JB? What am i doing wrong?

Thank you kindly for your help/suggestions/sarcastic comments

Diclaimer: 1)The pic is not mine. Just inserted for the idea..2) sorry for typos-I'm german..