What does it mean when a guy lingers a conversation by asking to walk with me before his work?

After we both talked with each other, he asked if he could walk with me before his work started. We've been good friends for more than a year. He also told me at the end that "it was nice talking to you." He also was shaking his leg while sitting down and talking with me. Also, told me to come to more events on campus and asked my plans for the weekend. Additionally, he went we first hung out he placed his Starbucks frappe cup next to my coffee cup while we were talking with friends because me and him had got coffee together. Does he like me more than just a friend?
What does it mean when a guy lingers a conversation by asking to walk with me before his work?
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