The sexual behavior of women, on the other hand, was less consistent and tended to be shaped by their new male partners.

But if not reinforced, the new behavior tends to be "extinguished."

Standing before television cameras or alone on a stage, his behavior tends to be wooden.

"Superstitious behavior tends to be heightened when people are under financial stress."

These behaviors tend to foster a high individual survival rate, but do relatively little to maintain cultural continuity.

When our behavior is guided by personal or human factors, interpersonal behaviors tend to occur.

His emotions and behavior tend to move in huge dramatic swings.

Such behaviors tend to ebb and flow in many people, especially when they are under stress.

My husband's behavior tended to change when the sun went down.

Their behaviour, attitude and look also tended to make people go crazy.