1. Like his pictures: One of the most straightforward ways to grab his attention is by liking the photos he posts. Be authentic and like the pictures that genuinely interest you, so it does not come across as desperate or too obvious.

2. Leave genuine comments: Show him that you are paying attention to his posts by leaving thoughtful comments on his photos. You can compliment him or point out something interesting in the post, which can initiate a conversation.

3. Use humor: Showcase your wit and sense of humor through witty and funny comments under his posts. It will not only show your fun side but also leave an impression on him.

4. Follow his stories: Watch his Instagram Stories regularly, as it allows you to have a glimpse of his daily life and experiences. Reacting to his stories with appropriate emojis or short messages will let him know you are attentive and interested.

5. DM him: Slide into his DMs by either replying to one of his Stories or striking up a conversation based on a mutual interest. Sending memes or funny content can be a great way to break the ice and start an exciting conversation.

6. Tag him in posts: If you come across something interesting that you think he might like, tag him in the post or send it directly via DMs.

7. Post engaging content: Put effort into posting quality content that reflects your personality and interests on your profile. An attractive feed can make him more intrigued about getting to know you better.

8. Utilize Instagram polls and questions: When he posts polls or questions on his story, participate in them, and showcase your opinions to help create rapport.

9. Respond positively to his messages: When he interacts with you via comments or messages, always be responsive, kind, and carry the conversation forward by asking open-ended questions.

10. Share your Stories: Use your Instagram Stories as an opportunity to showcase your daily life, hobbies, and interests. It allows him to observe and connect with different aspects of your personality.

11. Know when to hold back: Finally, remember not to overdo it and come off as pushy. Keep the interest and curiosity alive by maintaining a balance between interacting and giving each other space.