When i got my exam results two summers ago, my boyfriend happened to be away on holiday (we had only been together for about 2 months then). On the day i got my results he had arranged for a huge bouquet of flowers to be delivered to my house, with a note saying 'sorry i couldnt be there, hope everything is ok, miss you xx'
He also does simple stuff like light candles when we have nice baths together, and cooks me meals. I think it works both ways because i do stuff for him too, leaving him little notes, tidying his room (lol doesnt sound like a lot but he really appreciates it). Gestures dont necessarily have to be huge and grand and extravegent its the small personal ones that mean the most

xx