stare

fixedly, hard, intently, unblinkingly

The child stared fixedly at the colorful birds outside the window for several minutes.

absently, blankly, blearily, blindly, dully, sightlessly, uncomprehendingly, unseeingly, vacantly

After the long meeting, he stared vacantly out the window, lost in his own thoughts.

dazedly, disbelievingly, incredulously, open-mouthed, wide-eyed, wildly

She stared dazedly at the exam results, wondering if she had read them correctly.

bleakly, gloomily, glumly, grimly, helplessly, hopelessly, morosely

She stared glumly out the window, waiting for the bus that was already twenty minutes late.

coldly, coolly, defiantly, fiercely, moodily, stonily

The angry customer stared coldly at the waiter without saying a word.

(for) a moment

She stared at the painting for a moment before moving on to the next room.

still

Sarah sat quietly in the waiting room, still staring at her phone screen.

across, around/round, back, down, out, (straight) ahead, up

The old man stared down at the photograph in his trembling hands.

can/could only

When the accident happened, he could only stare in shock and disbelief.

turn to

When the child started crying, all the other passengers turned to stare.

across, after

He couldn't help staring across the room at the famous actor sitting in the corner.

around/round, at, in

She stared at the exam paper for several minutes before writing her first answer.

into, out of, through, with

The child stared out of the window watching the snow fall.

sit/stand staring, stand/stop and stare

She sat staring out the window for hours after hearing the bad news.

stare into space

During the boring lecture, he stared into space and thought about his weekend plans.