in a manner that shows observation

अवलोकन के तरीके से

English Usage: She watched the proceedings observingly.

Hindi Usage: उसने घटनाओं को अवलोकन के तरीके से देखा।

the act of observing

अवलोकन करना

English Usage: His observingly of the night sky led him to become an astronomer.

Hindi Usage: रात के आसमान का उसका अवलोकन करना उसे एक खगोलज्ञ बना दिया।