My baby Sanika is now almost 7 and a half months old but does not show too much intersted in walking on fours. Instead she is keen on standing up and walking! Boy, does she love it when we help her stand on her feet.
To help her learn to stand on her own, my FIL suggested a wonderful way. We made her stand by the window! We placed her on a bed (or a chair or a table) by the window and she held the bars of the window and spent a lovely time watching the trees, cars and people passing the street. The view on the street helped glue her to her place while she stood straight on her legs.