Used after a verb's -te form as a short form of '(please) try to ...' (e.g., 'do it and see').
まず一度やってご覧。
Try doing it once first.
問題がわからなければ、先生に聞いてご覧なさい。
If you don't understand the problem, try asking the teacher.
このボタンを押してご覧。動作が変わるはずだ。
Press this button and see. The operation should change.
(Please) look — a polite prompt to look or check something.
これをご覧になってください。
Please take a look at this.
写真をご覧ください。
Please look at the photos.
The act of seeing/watch — used as an honorific noun for 'look' or 'watch'.
どうぞご覧ください。新しいカタログです。
Please have a look. It's the new catalog.
社長もご覧になっていますので、挨拶してください。
The president is also watching, so please greet him.
ご覧になる前に、注意事項を読みください。
Please read the precautions before you look.