Well first off I take it that you are in a high position that enables you to promote someone. If someone asks you that, you need to realize that there are many other people who might want that promotion, and it is a bit selfish to ask when other people are patiently standing by. Also is this person who asked you his question suitable for a higher position that involves more work? Are they up for the job? They have to be eligible to be up for the task. If they are not eligible/ready, they are not suitable for a promotion. You are either just going to have to say yes or no. I hate to say this but you can t always be the nice guy who gives someone something just because they asked. You have to make sure everything is fair.