Language skills are improving at an incredible rate. Visitors to your home may even comment on how quickly toddler's language skills have come along since the last time they were around, even if it was only the same time last week. He'll be clinging on your every word, and trying them out for himself. Slowly and surely the words will become more clear as he practices them through listening an repetition, so converse with him as much as you can.
He's slowly learning to control his emotions and the actions that arise from them. He'll still enjoy pushing, pulling, and throwing tantrums now and then. When you notice him becoming frustrated, it may help to distract him with something different right away. Talk about something else, bring out a new toy, or ask him a totally unrelated question. It won't work every time, but it's always worth a try for both your sakes.