Boy problems anybody can help?

There are two boys and I think they like me but I'm not sure they always try to beat each other in doing something that I need like when my markers spill they always try to be the first ones to help me pick them up. Do they like me? Let's call them Bigfoot and Leprechaun. Bigfoot tries to always kick the ball perfect when I'm watching (he is on the football team) and Leprechaun is sometimes caught in the classroom sharpening my pencils, sorting my desk, and putting stuff like magical creature action figures (i don't know where he gets them) and there is one more we can call him Shadow, but he seems to be doing stuff secretly all the time and I feel like somebody is watching me but I can't see them.