To judge whether a boy younger than you likes you, you can observe from the following aspects:
1.*Attention and eye contact**: Does he pay attention to your every move, make more eye contact with you, and show interest in your topic.
2.*Active Interaction**: Whether he takes the initiative to communicate with you and find opportunities to contact you, such as chatting, doing things together, etc.
3.*Body Language**: Whether his body language leans towards you, smiles at you, or acts relaxed and happy when talking to you.
4.*Special Concern**: Whether he is particularly concerned about you, such as asking about your situation, offering help, or caring about your feelings.
5.*Nervous and shy**: Whether he seems nervous or shy when he is with you, this could be a sign of liking you.
6.*Share and Listen**: Whether he is willing to share his own things with you and listen carefully to what you have to say.
7.Social: Whether he interacts with you more, likes, comments on your posts, etc.
8.*Time and energy commitment**: Whether he is willing to spend time and energy with you, even if there is no special arrangement.
It is important to note that everyone may express their liking differently, and these signs are not absolute proof that he likes you, but they can be used as a reference. The most important thing is to identify each other's feelings by communicating and getting to know each other. At the same time, it is also important to maintain a keen sense of observation and self-awareness, and trust your instincts.