He is just being polite and is not interested in you romantically when he rarely has one on one conversations with you or doesn’t do much to further a conversation.
Is he interested in being friends?
That is possible.
Figure out the cost and benefit analysis for you with this as the case.
As in, is this truly worth your time?
The reality is that you do like this guy.
You are interested in him romantically and you want him to be more than just a friend.
Are you satisfied with him as a friend and nothing more?
It is unlikely that you are.
Watching him talk to other girls creates envy.
Obviously not a good place to be for you and tough to handle.
Initiate conversations with him about topics that he is interested in.
Whatever you learn from him, go off on your own and gain more knowledge about that topic.
The next time you two converse, you are full of new information about that topic.
In spotting that you know more about a particular topic than other girls, he pays you more attention to you.
This is where you separate yourself from the rest and put yourself on the path that goes beyond friends.
In telling you about his love for a particular video game, learn more about it.
Take an interest in it.
Play it on your own to improve your skills so that you have something to relate to him with.
Ask him about what he does to get passed Level 4.
This is where you spark his interest.
It’s about building a sense of comfort and intrigue.
People naturally gravitate towards others that they feel a sense of similitude with.
This is your opening to not just be the girl that nods her head and smiles, but relates.
It’s what makes you interesting to him and sets you above the rest, where you entice him to go beyond friends to something more.
Which is why finding common ground works.
Maintain an open and receptive body language so that he gets the sense that not only are you really relaxed around him, but you seem to be open to wherever this leads.