读后感一般说成：
Impressions (of) after reading
读后的印象
Thoughts (of) after reading
都后的一些想法
看后有感也可以说成：
Impressions (of) after watching (this movie)
Thoughts (of) after watching （this movie）
玩儿后有感可以说成：
Impressions (of) after playing (this new game)(或者in some place)
Thoughts (of) after playing ((this new game)(或者in some place)
所以：
读（看、玩儿）.有感
Impressions (of) after reading [(after watching )(after playing)]
Thoughts (of) after reading [(after watching )(after playing)]