He was thoughtful for a few moments, then went on.
G-8 appeared to be thoughtful for a moment, then nodded.
Nancy was thoughtful for several seconds before making a comment.
He was thoughtful for a while and she waited him out.
She made my heart beat and caused me to remain thoughtful for a whole evening.
Most of the boys around the table looked mighty thoughtful for a bit.
Shelley was thoughtful for a moment, then she changed the subject.
Franklin was very thoughtful for the rest of the evening.
I found he was a very good rider, and thoughtful for his horse too.
He was thoughtful for a moment, then came to a decision.