"Most of that was a pose to conceal his real feelings."

But they are having trouble concealing their true feelings from everyone!

He was able to conceal his feelings from those around him.

The best he could do would be to conceal his true feelings, and continue on as they were.

True Bear, no longer able to conceal his feelings, said what he felt.

Henry concealed his feelings very well, and actually smiled a welcome.

Still, he'd never been very good at concealing his feelings.

You were so good at concealing your feelings before, why not now?

How easy the mask made it to conceal one's feelings.

The fact that John made no effort to conceal his feelings now spoke more than the thoughts themselves.