朋友花时间帮你改简历、陪你看房、介绍资源，你可以请一杯咖啡、发进展反馈，或者在对方需要时帮回去。
When a friend takes the time to help you revise your resume, accompany you to look at apartments, or introduce resources, you can buy them a coffee, update them on your progress, or help them back when they need it.