Prince William's First Day at Cambridge—Get the Exclusive Details About His Return to School!

31-year-old royal was spotted on the train during his commute

Prince William is commuting to school just like any other student.

The 31-year-old royal, who is attending the University of Cambridge for a 10-week-program, traveled by train for his first day of classes on Tuesday, Jan. 7.

Kate Middleton's husband, clad in a navy suit and mahogany tie, took the 9:44 a.m. train from Kings Cross station in Central London, a source reveals exclusively to E! News.

"He didn't travel first class, and blended in pretty well as a commuter," the source said. "He kept himself to himself and was just reading."

No word if he was reading from a textbook and preparing for his course work.

After his first day, an eyewitness spotted William returning to London on a 5 p.m. train.

For his second day on Wednesday, Jan. 8, William was spotted catching a 9 a.m. train at Kings Cross and opted for less formal attire after dressing up for his first day.

"He was dressed down in a baseball cap, and although a few people did double takes, he didn't draw attention to himself," the source said of William. "He seemed quite comfortable and relaxed and was only bothered about getting on a train like everybody else."

Sounds like every other person, in any metropolitan city, who has to make their way inside a train during rush hour.

Kensington Palace announced on Dec. 30 that William would partake in a course in agricultural management organized by the Cambridge Programme for Sustainability Leadership.

The executive education program of seminars, lectures and meetings "will draw on the strengths of academics across the university," according to a palace press release. It started in early January and will run until mid-March.

The course has been designed help provide Prince George's dad with "an understanding of contemporary issues affecting agricultural business and rural communities in the United Kingdom."