I watched him suspiciously. 
I observed him closely and mistrustfully.
I observed his actions unsuspectingly of any oddities.
A man riding a motorcycle down the street
The man had free time to spend on the golf course or to do other things.
The Ottomans came from the west.
The 2.5m tall bell was made in 1301.
People are watching a basketball game.
This enables the President and the Director of the OMB to preclude a suit under no certain special.