atentamente

atentamente
ah-tehn-tah-mehn'-teh
attentively, carefully; kindly
Examples
1. Todo el grupo escuchó atentamente la presentación de Esmeralda.
The whole group listed attentively to Esmeralda's presentation.
 
2. Solicitamos atentamente que los alumnos no mastiquen chicle en el gimnasio.
We kindly ask students not to chew gum in the gym.
 
Notes
This word is commonly used in correspondence to mean "sincerely" or "yours."