Not every one can do this presently . . . because of . . . well, various reasons . . . .
And most probably don't want to any how, even if they could . . . .
I am just sharing what it is that I do to find myself as close to the Spirit--"separated", "called out"--especially in these times, for I personally believe that some major ju-ju is going on to derail, distract and dissuade current and would-be disciples from their appointed work . . . .
Indeed, between brain-jamming waves (causing forgetfulness and other disturbing mental conditions) . . . and the ongoing blasting/beaming of particular ungodly thoughts at the mind, plus the ravenous and roving familiar demonic spirits, combined with the onslaught of occult rituals, spells etc. aimed at Believers and "patriots" every day . . . combined with God's judgment "turning them over to a reprobate mind" . . . plus potential saturation with ELF, HAARP, microwave, radio and cosmic rays all gone wild . . . never mind the constant bombardment of pornographic songs, images, verbiage laid atop a daily, hourly slew left-wing, communistic "agitprop" . . . alongside hourly, daily slops of anti-male, anti-family, anti-Bible, anti-Christ propaganda . . . the likely drugging, poisoning through food, air, water, injection hammering the immune and nervous systems . . . .
Just to name a few of the constant challenges facing the Holy Spirit seeking, righteously-minded, world-rejecting seeker/servant of God . . . .
I don't see that you can make an effort of this, out of a dead-stop, so much as . . . it is just something that you find yourself doing, as the Holy Spirit indwells and inspires and leads . . . .
I do think it is a slightly alarming sign . . . if there is NO desire to be set apart, distinct . . . from the mess of the world. As a Believer, genuinely converted, born again . . . the old self dies, despite it's continuing momentum for a time . . . . But, in general, you really do start to transform and become renewed into a new life and new ways of being, of acting, of thinking . . . .
Primary among such changes is the losing of taste for the "slime" and depravity of the world and its shills. Where once there might have been a sort of compulsion to imbibe or dive into things that you knew weren't right . . . now . . . not so much . . . and getting less so.
In addition to a real, growing aversion to sin, falsehood, lawlessness, licentiousness . . . is a new hunger and thirst for the things of God--especially His Word. You want to hear about His Word, want to read it, understand it more . . . and all manner of things pertaining to the Word, like the history involved, the stories, the various teachers and preachers, prophets and scribes who gave so much (often their lives) to get us the Word . . . .
You will find that songs, movies, television shows . . . which are packed with vile blasphemies and calumnies against God and His people, which promote sin and mock good . . . are increasingly intolerable for you. They become literally painful to watch or listen to--the affronts and arrogance against God/truth . . . . Your speech changes . . . . If you use to swear a lot, you find you no longer are so habitually inclined and when you hear the Lord's name "taken in vain" it is like an arrow piercing your chest . . . although, not so long ago, you yourself might have tossed His Name around as a thoughtless, crass cuss-word . . . .
You will find that gossip is no longer so enticing--an uncomfortable sense of shame stirs within when you find yourself listening to or participating in ill-spoken words against another not present . . . when once it was your bread and butter . . . .
Drunkenness . . . sarcasm . . . secret schadenfreude (taking joy in others' misfortune) . . . hidden self righteousness . . . hatred in the heart . . . . All the old ways of the "old man" . . . lesson and begin to fade. Not all at once, most likely, but for real . . . steadily, surely . . . with periodic backslides, yet quick repentance and moving forward again subject to the regenerating work of the Spirit.
All of this . . . is what happens as we take our "thoughts captive", turning them to the Lord, toward holiness and glory . . . .
With the unsaved . . . it is garbage in, garbage out. With the disciple of Yeshua, the mind is getting cleansed, the heart becoming spiritual, GOOD thoughts and imaginations in, good thoughts out. The disciple protects his mind and heart and soul, for the body is temple where the Holy One resides, and so we are careful what we allow to fill its halls and galleries, not forgetting the corners and cellar, but flooding it with the purifying, radiating influence of His Word, which is ALIVE and so, enlivens the temple . . . .
Oy, another snowstorm . . . and I've got to shovel out so that I can make the treacherous, long journey to work . . . . So, God bless you, and back asap with the sharing, fwiw, of what I/we do here daily pertaining to the above concerns . . . .