i was designing a card and each card has like(heart) and comment. i thought i would place like button on right side of card. what are your suggestions.
other actions: tap on card expands card info...so cannot have double tap like as in instagram.
Place the like button on the left side as other social networks do.
This is because users are used to having the like button on the left side of the card/post. This complies with the consistency usability heuristic.
If you put the like button on the right side users will first look at the left side (because facebook, instagram, twitter have their like buttons on the left) and expect it will be there. However, it may take some time for them to detect that the button is on the right side. This is not intuitive.
My advice is to stick with the design that you have uploaded.
Ok, after looking at the updated images in the OP, here are my thoughts:
How important is the interactions? To me, the heard and the comment-buttons are essential, therefore I would make them a bit bigger so they will be easier to find and also easier to touch.
And what's the use of that third icon at the very right of the heart and comments?
I think you should identify what is the main interaction you are looking for, to like or to add to favourite (Bookmark). Pinterest does it pretty well by have the PIN as the main interaction (with a huge red button) and the like and share interaction as secondary (in dark grey).
I would also increase the contrast in your design for legibility