You will not be asked to go out if he does not know that you exist so tell him hi when next you see him or if the opportunity presents itself then spark up a conversion with him. The more he knows about you the more comfortable and easier it would be for him to ask you on a date.

If you are not within his friend circle then you are going to have to observe him and see if he is dating anyone else, facebook or instagram can help with this. You would not want to waste your time if he is currently in a relationship with someone else.

Try to gradually increase the number of times you are seen by him and your interactions. Example you could try to take lunch at the same time he takes lunch or go to the gym when he goes to the gym. You don’t want to look desperate or like a stalker so don’t turn up at his house.

Try to present yourself as being approachable and give off the vibe that you are single so don’t be afraid to make eye contact with him and if the opportunity presents itself then flirt with him.

You want to dress and smell nice so that you can catch his attention, this will set you apart for all your competitors and potentially make him notice you.

At this point he should know who you are and would have determined if he would want to date you. If he has not asked you to go out then don’t be afraid to talk to him about your feelings and ask him out. This can go either way but at least you will know what he is feeling and you would be able to make your decisions based on his response.