Nephew, son, friend

My nephew is tall with green eyes or perhaps jade. Once he had dreadlocks but now he has none. My son has blue eyes and is also tall, but perhaps not so tall as my nephew, and he never had dreadlocks although once his hair was so long people thought he was a girl. My friend has brown eyes and short dark hair and his hair was never long, this I am sure of. In all probability he is not as tall as my nephew or my son but I do not know this for certain as, although we talk almost every day, we have never met.