Seattle, WA; USA President President Obama Visit. My First Interaction With Secret Service Agents

The first time I saw two official secret service agents was with my mom in Seattle during a visit of Obama. My mom and I walked by the two Secret Service agents and one of the Secret Service agent happily looked at one of my German t shirt, he was going to saw something but my mom told me to leave for the bathroom at Barnes & Noble. One of the comments from the Secret Service agent was he was going to ask if I wanted to go home to the United Kingdom and I can stay if I choose to stay in the USA. I will research online on how I can reach the Secret Service agency, within these days.