give it lots of love and then level it up.
no
riolu evolves by friendship so when it likes you enough it will evolve into lucario
Level up Riolu's friendship in the day to evolve it into Lucario.
Riolu evolve's normally and pichu evolves through happie'ness
you have to give it max happiness
There is no set level for Riolu to evolve. Instead, it evolves with happyness. Heck, I've got a Riolu on level 59, but it hates me.
A Riolu, which can evolve into a Lucario.
(well first let me tell you this don,t trade Riolu because if you get him back or not he or she will not evolve)but anyway Riolu evolve at Lv.16 or 24
Riolu evolves when its Happiness reaches a value of 220 and leveling it up at least once during the Day.
Riolu is evolved when levels up with high happiness during daytime.
Riolu evolves when it is at maximum happiness and then when it's at maximum happiness you have to level it up in the day time 1 level.
To get Riolu to evolve you must have a sun ribbon