Former World No. 1 Williams, now ranked 11th in the world, has only competed in two events this year.
She lost in the fourth round of the Australian Open after withdrawing before a Brisbane quarter-final due to a left ankle sprain.
Williams won two matches for the US Fed Cup team last month in a 5-0 victory over Belarus in a World Group II tie and would seek a 40th career WTA crown in the combined ATP-WTA event in South Florida later this month.
Williams, who semi-regularly stages Friday answering sessions on her Twitter page, was asked if she would play in Miami and tweeted "Yesss :)". Williams has won the Miami title in 2008, 2007, 2004, 2003 and 2002.
Asked what she had not been doing correctly, Williams replied, "Stay healthy and play."
Williams has seen limited action since winning the 2010 Wimbledon crown and suffering a foot injury shortly thereafter. Last year she won WTA titles at Stanford and Toronto.
But most of the Twitter chat by Williams were more esoteric revelations, including her not-so-surprising choice as favorite tennis player -- her older sister Venus Williams, whose seven Grand Slam titles and 43 career triumphs include five Wimbledon wins.
Asked why most players name Wimbledon their favorite Grand Slam event, Williams replied, "Aussie is my fav".
The 13-time Grand Slam singles champion has won five Australian Open titles, four Wimbledon crowns, three US Open titles and once at the French Open.
Her favorite Grand Slam triumph was at the 2003 Australian Open, giving her four consecutive major titles.
Williams told her fans in Indonesia "Hey guys! I love u all."
She loves watching football. Her favorite rap singer is Common. She loves her Hello Kitty backpack. She wants to watch some Bollywood movies. Her favorite nail color for spring is Opi Gels and she does not do push-ups.
Williams hopes to one day visit Scotland and Egypt and she has been to Moscow -- "Love Moscow! So pretty. Amaz city." She has given up drinking coffee and her top hidden talent is her dancing. She hopes to act in a movie soon.
Asked when she would have a karaoke video released, she replied, "The way I sing- I hope Never! Lol".
Asked her favorite quote, she picked a line from fictional cinematic US stock car racer Ricky Bobby -- "If you are not first, you are last."
The best thing she has eaten this week are "Cherry sours! So bad for u!!"
Asked what her favorite city in the world was, she replied, "its no secret I Love Paris".
Asked when she was getting married, Williams closed her replies by saying, "before you".