People show their love differently than others. Sometimes we see how, sometimes we just blind. If you haven't seen any, keep observing cause it could be a tiny thing that you've been missed out. These are what I observe:-
Some people show their love with
.:. cooking meals and deserts
.:. sharing his big screen tv with his friends
.:. offering to buy groceries
.:. willingness to let friends copying his homework
.:. never say no what she request for
.:. keep saying 'I love you'
.:. always say hi on ym
.:. helping out with everything
.:. staying aside and be a good listener
and many others. So regardless of how you express your love towards others, embrace this life with making the best of all. Don't take things for granted and do take advantage of everything.