You follow me through nature, I follow you through life. I am the signs of what you've done in meatspace or online. When I fade, they say I'm cold, and when you're close the ones behind are said to be what's hot. What am I?

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Incorrect Guesses
texts tales tails words voice phone color clues trees survi youth memes braun consc 00000 guilt flame goals oxyge kukes guess death house frien lucky messy lives wanks fanny shite fears years rules image posts media trace marks print brand light trend guide meter space orbit route moves steps peace natur times ydhdb shade steam track paths latch doors lover karma jesus lungs solar earth water grass cloud inter oldma histo stare sight smile brain heart
The first user to correctly answer this riddle was TheSaltyChip