Teen talk

Ok so I’m new to all this and I’m only 12 but I need advice on boys. Mostly because there is this one boy he is my neighbor and he’s cute,funny,loving, caring,protective,and I have known him since first grade. But there is another boy and I have not seen him since preschool and I’m going into middle school next year and I have a problem!!! First of all I can’t remember what he looks like and I don’t know what his last name is!!! So I need help got any tips or suggestions?