Reflect on the times that mean the most to you, never forget your past. Your past is what makes you what you are today, from all the short interactions with a stranger, to the conversations that last for hours. Everything that has ever happened to you, down to this second, has effected your personality. The friends you have made over the years, the friends that you used to talk to every day, the ones that you still talk to today, they all has made you who you are.
You might think its just nothing, but deep down you know exactly who has made you this way. Whatever they have done or said to change you, you know what they said, you know the tone of their voice, you know how strongly they felt about it. But without that, interaction, that little phrase, the way they looked at you, you would not be who you are.