Yes, when my friends can’t answer my phone, I will text him to let him know and wait for his reply.

I believe when the person answering the phone is having a conference or in a cinema, it’s better to text him instead of having a telephone call.

Yes, I remember when I have to refuse some requests of friends, I have to think carefully about how to reply for a long time.

I almost send text messages on a daily basis. I always text my friends and family to greet, chat and make a travelling plan.