How can you know that you love someone? For me, mararamdaman mo lang 'yan kung sakali. Yes, you can feel the beating of your heart, may mararamdaman kang butterflies sa stomach mo, or whatever na enough signs para malaman mo talaga na mahal mo yung someone na 'yon. You'll know that you love that someone kung parang kada araw, gusto mo siyang makita like you can't bear the fact of losing that someone. Like parang mararamdaman mo na lang na nasasaktan ka kapag nakita mo siya na may kasamang iba or worst, in a relationship with another person. Paano magmahal? I can't answer that question but I'm pretty sure that you can feel it rather. Mafi-feel mo na lang 'yan then it'll lead you to do different ways para makita lang na mahal mo yung someone na 'yon like protecting that someone in times of danger, comforting that someone kapag nararamdaman mong nasasaktan siya. Mararamdaman mong mahal mo siya kapag paulit-ulit ka niyang nasasaktan pero hindi mo pa ring magawang magalit sa kanya. That's love, you're just going to feel it, you know.
P.S. This is not hugot, okay?