Watch the Slide In & Slide Out online guitar lesson by Chris Buono from 60 Electric Guitar Techniques You MUST Know
This may be the most common albeit never talked about electric guitar technique. It's that thing that guitar players unconsciously do coming in and out of just about everything they play. While any technique is subject to it, some level of sliding in and sliding out is done here, there, and everywhere. It's one of the techniques that ushers your playing into a more seasoned arena.
EVERYONE DOES THIS.