Anak-anak memang develop at their own pace, tapi pointing, waving, and meaningful words are quite important milestones around 12-15 months, I'd suggest having a gentle chat with your paediatrician just to check, especially since you're noticing all three areas together. The good news is his eye contact is good, which is a positive sign, so don't worry yourself too much yet, tapi better to get professional reassurance than wonder, kan? Many mums have been in your shoes and early support makes such a difference if needed. You're doing great by keeping track of these things, that's what a caring mama does.
Erin syafiqa