When and Where?
I don't know how it works where you live, but when I have to call a repairman for something, the company says something like, "The repairman will be there between 1:00 p.m. and 4:00 p.m." Since I don't know when the repairman will arrive, all I can do is wait.
Jesus told His followers that He would soon be leaving them and they would need to wait for His return in "a little while" (John 16:16). We still wait for Jesus' return. And while we are waiting, it's our delight in the Holy Spirit's power, to tell and show others who Jesus is, what He has done for all of us through His death and resurrection, and that He has promised to return.