Guys, I crossed my crush in the hall and he just stared ahead without even glancing at me but he walked so close our arms touched does he like me?

He stands/ sits near me and sometimes next to me or behind me often and I’ve caught him looking in my direction quite usually and sometimes he starts acting really boisterous when i walk in a room but stops as soon as I leave. I don’t know if this means he likes me or if these are all just coincidences please help

Guys, I crossed my crush in the hall and he just stared ahead without even glancing at me but he walked so close our arms touched does he like me?
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