This is perhaps one of the most trendiest and smartest ways of announcing your liking for him. If he likes you, he is bound to be on your list of buddies. Remember the occasions when he complimented you. Post photographs of such occasions. To make him realise your motive behind this, use creative captions to denote that you value his opinion. Whenever he uploads photos of himself on his profile “Like” them to highlight that he genuinely captures your attention. Your tech-smart man will definitely catch these clues!