How I Met Your Mother: Season 2, Episode 4

2 - 4: Ted Mosby: Architect

After Robin insinuates that Ted's job is boring, Barney sets out to convince his buddy otherwise. As the guys test out the pick-up line, "Ted Mosby, Architect" on the ladies, they realize it really works. But when Robin hears that Ted is parading around town picking up girls, she is hot on his heels to discover the truth.