You'll have to rely on someone else for more detail on proper partisan resistance, But I've a small measure of education on the youth resistance to the Nazi's.

In direct response to the Hitler youth there where two main groups, The Swing Kids, who had a taste for American "degenerate" culture; and the Edelweiss Pirates who where more... aggressive in their distaste for Hitler's regime and openly did battle with Hitler Youth troops.

The Edelweiss pirates sprung up before WW2 in response to the strict and often rather cruel Hitler Youth. They where built up primarily of Children who left school early, which was allowed at 14, and those young enough to avoid conscription. The pirates where not segregated by Gender as the Hitler youth and League of German Maidens where, and offered an opportunity for intermingling and experimentation between the sexes during that fun bit of puberty.

They also used iconography and typologically similiar traits of the now illegal German Youth Movement, like their uniforms, worn more casually, their style of tents (Kohtes, now fairly common in modern German Scout groups) and campfire traditions (songs, dances and the like). They behaved much like a scout group when they weren't fighting Nazi kids. I'll stop myself before I go on an anthropological tangent.

There where subgroups, such as the navajos, and kittelbach: "Every child knows who the Kittelbach Pirates are. They are everywhere; there are more of them than there are Hitler Youth... They beat up the patrols... They never take no for an answer."

They engaged in street battles with the Hitler youth, robbed their patrols, aided downed allied pilots and insurgents, distributed allied propaganda that was dropped from planes.

The Gestapo would round up members and shave their heads, imprisoned or sent to concentration camps. Thirteen where executed on order of Himmler in 1944 on the 14th of October, However they where never crushed entirely. They remained a major group post WW2, but where neither pro-British or pro-American, despite aiding them during the war.

The swing kids where middle to upper class high-school kids who passively resisted by simply refusing to adopt the culture of the new Reich. They where either indifferent, or opposed to the war, and simply lived how they wanted to in secret, enjoying English culture, and American swing music in clandestine clubs and gatherings.

Despite their non-violent resistance they faced similiar punishment to the Edelweiss pirates. However the end of the war averted any executions due to association of some members with the White Rose.

EDIT: Just a TL;DR: Edelweiss pirates, similiar to the scouts, used to fight Hitler Youth, and Swing kids, who dressed groovy, enjoyed devient culture and in the words of Hippocleides "didn't care" for national socialism.