No it may not be legal. If you continually follow someone, silent or not, it could cause a reasonable person to fear for their safety or to experience emotional

No it may not be legal. If you continually follow someone, silent or not, it could cause a reasonable person to fear for their safety or to experience emotional distress. There is nuance to this, but just the act of continually following someone can be stalking (even if you never engage with them).